Let

f(x) = 1/x. Find a number b so that the average rate of change of f on the interval [1, b] is

−1/7

Answers

Answer 1

To find a number b such that the average rate of change of the function f(x) = 1/x on the interval [1, b] is -1/7, we can set up the equation for the average rate of change and solve for b.

The average rate of change of a function on an interval [a, b] is given by the formula (f(b) - f(a))/(b - a). In this case, we have f(a) = f(1) = 1/1 = 1.

Substituting these values into the formula, we get (f(b) - 1)/(b - 1) = -1/7.

To simplify the equation, we can multiply both sides by (b - 1) to eliminate the denominator, resulting in f(b) - 1 = (-1/7)(b - 1).

Now, we can solve for b. Distributing -1/7 on the right side of the equation gives f(b) - 1 = (-1/7)b + 1/7.

Adding 1 to both sides gives f(b) = (-1/7)b + 8/7. To achieve an average rate of change of -1/7, we need the slope of the function f(x) at b to be -1/7. The slope of the function f(x) = 1/x is given by its derivative, which is -1/x^2.

Setting the derivative equal to -1/7 and solving for x gives -1/x^2 = -1/7. Multiplying both sides by x^2 and simplifying, we have x^2 = 7. Taking the square root of both sides, we get x = ±√7. Since the interval is [1, b], we are only interested in the positive root. Therefore, the number b that satisfies the given condition is b = √7.

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Related Questions

Find the tax amount given the original price and the tax rate. Round to the nearest cent if necessary. Original price: $58.73 Tax: 6.5%

Answers

The tax amount, rounded to the nearest cent, is approximately $3.81.

To find the tax amount given the original price and the tax rate, we can multiply the original price by the tax rate.

Original price: $58.73

Tax rate: 6.5%

To calculate the tax amount, we need to convert the tax rate from a percentage to a decimal by dividing it by 100:

Tax rate = 6.5% = 6.5/100 = 0.065

Now we can calculate the tax amount by multiplying the original price by the tax rate:

Tax amount = $58.73 * 0.065

Tax amount ≈ $3.81 (rounded to the nearest cent)

Therefore, the tax amount, rounded to the nearest cent, is approximately $3.81.

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Select each expression that has a value of 15 when x = 15 D A - 10 3 DB 15.521 * * OC (3,015 - ) - 186 OD 2022-30 DE -25 what is the answer?​

Answers

The expressions that have a value of 15 when x = 15 include the following:

A. x/3 + 10

C. (3,015 ÷ x) - 186

How to evaluate each of the expression?

Based on the information provided, we would determine the output value of each of the given expression by substituting 15 for the value of x as follows;

Expression = x/3 + 10

Expression = 15/3 + 10

Expression = 5 + 10

Expression = 15 (True).

Expression = 15,521 ÷ x

Expression = 15,521 ÷ 15

Expression = 1034.73 (False).

Expression = (3,015 ÷ x) - 186

Expression = (3,015 ÷ 15) - 186

Expression = 201 - 186

Expression = 15 (True).

Expression = 20x² ÷ 30

Expression = 20(15)² ÷ 30

Expression = 4500 ÷ 30

Expression = 150 (False).

Expression = 20x²/5 - 25

Expression = 20(15)²/5 - 25

Expression = 900 - 25

Expression = 875 (False).

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

A 14ft ladder leans against the side of a house the angle of elevation of the ladder is 74 how high is the top of the ladder from the ground round to the nearest tenth

Answers

The top of the ladder is approximately 44.1 feet from the ground.

To find out how high the top of the ladder is from the ground, we need to use trigonometry, specifically the tangent function since we have the angle of elevation and the length of the adjacent side. Here are the steps to solve the problem:

Step 1: Label the diagram and identify the angle of elevation and the adjacent side.

Label the base of the ladder as the adjacent side (a), the height of the ladder as the opposite side (o), and the length of the ladder as the hypotenuse (h).Identify the angle of elevation as the angle between the adjacent side and the hypotenuse.

In this case, the angle of elevation is 74°.

Step 2: Write out the formula and substitute the given values.Tanθ = o/aTan74° = o/a Solve for o: o = a * tan74°

Step 3: Substitute the value of a and use a calculator to find o.

Substitute the value of a, which is 14 feet, and use a calculator to find o. o = 14 * tan74°o ≈ 44.1 feet (rounded to the nearest tenth)Therefore, the top of the ladder is approximately 44.1 feet from the ground.

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Which statements describe the function f(x) = 3(1/3)^x? Check all that apply.

Answers

The function [tex]f(x) = 3(1/3)^x[/tex] represents an exponential decay function. It is described by the following statements:  The function [tex]f(x) = 3(1/3)^x[/tex] represents an exponential decay function.

In an exponential decay function, the base of the exponent is between 0 and 1, causing the function to decrease as x increases. In this case, the base is 1/3, which is less than 1, indicating decay. The coefficient 3 represents the initial value or starting point of the function.

As x increases, the function approaches zero, getting arbitrarily close to but never reaching it. Therefore, the function [tex]f(x) = 3(1/3)^x[/tex] is always positive but gradually decreases as x increases. It does not have a horizontal asymptote because it approaches but never reaches zero. It is important to note that the function is defined for all real numbers.

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The complete question is:

Which of the following statements describe the function f(x) = 3(1/3)^x? Check all that apply.

1. The function represents an exponential decay function.

2. The base of the exponent is between 0 and 1.

3. The coefficient 3 represents the initial value of the function.

4. As x increases, the function approaches zero but never reaches it.

5. The function does not have a horizontal asymptote.

6. The function is defined for all real numbers.

In ΔABC, the measure of ∠C=90°, the measure of ∠A=5°, and BC = 3 feet. Find the length of CA to the nearest tenth of a foot

Answers

I think its about 10.6ft but im not sure

PP 02. 10
2) Mr. Edwin Lazo paid Php 13,600. 00 for a television serMUT UN UN
P16,000. 0. What is the rate of discount?
4. 15%
B. 16%
C. 18%
D. 20%
that regularly sells at Php 1580. 00 is on sale at 30% off. What is the​

Answers

The rate of discount is 30%. The regular price of the television set is Php 1580, and it is being sold at a discount of 30%.

To find the sale price, we can use the formula:

Sale price = Regular price - (Discount rate × Regular price)

Substituting the given values, we get:

Sale price = 1580 - (0.30 × 1580)

Sale price = 1580 - 474

Sale price = 1106

Therefore, the sale price of the television set is Php 1106. This means that Mr. Edwin Lazo paid Php 13,600.00 for an item that originally cost Php 1580.00 but was on sale at Php 1106.00.

To calculate the rate of discount, we can use the following formula:

Discount rate = (Regular price - Sale price) / Regular price x 100%

Substituting the given values, we get:

Discount rate = (1580 - 1106) / 1580 x 100%

Discount rate = 474 / 1580 x 100%

Discount rate = 0.3 x 100%

Discount rate = 30%

Therefore, the rate of discount is 30%.

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Which type of tax describes excise taxes, sales taxes, and tolls?

Answers

All three types of taxes fall under the category of indirect taxes because they are not directly based on an individual's income or wealth but rather on the consumption of goods, services,

or use of specific infrastructure.The types of taxes you mentioned, namely excise taxes, sales taxes, and tolls, are all examples of indirect taxes. Indirect taxes are imposed on goods, services, or transactions rather than directly on individuals or entities.

They are typically collected by intermediaries, such as businesses or service providers, who then pass on the tax burden to the consumers.

Excise taxes are levied on specific goods, such as alcohol, tobacco, gasoline, or luxury items. They are often intended to discourage the consumption of these goods or to generate revenue for the government.

Sales taxes are imposed on the sale of goods and services and are usually calculated as a percentage of the purchase price. They are collected by the seller from the buyer at the point of sale.

Tolls, on the other hand, are charges imposed on the use of certain infrastructure, such as roads, bridges, tunnels, or highways.

They are typically collected at toll booths or through electronic systems, and the revenue generated is used for the maintenance and construction of the infrastructure.

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use the distributive property to create true equations 8(3+6) brainly

Answers

Here are some true equations that use the distributive property to distribute 8(3+6):

8(3+6) = 8(3) + 8(6) = 24 + 48 = 72

8(3+6) = (83) + (86) = 24 + 48 = 72

8(3+6) = (83) + 68 = 24 + 48 = 72

The distributive property can be used to distribute any number of factors over a sum. In this case, we are distributing the factor 8 over the sum 3+6. We can do this by multiplying each term in the sum by 8 and then adding the products together. This gives us 24 + 48 = 72.

The altitude at which we boil an egg affects how long it takes for the egg to achieve perfect hardness. It takes

198

198198 seconds to boil a perfect egg at the lowest place possible, the edge of the Dead Sea, which has an altitude of



418

−418minus, 418 meters. The highest place possible is the summit of Mount Everest which has an altitude of

8848

88488848 meters. It takes

209

209209 seconds to boil a perfect egg there. T

(

a

)

T(a)T, left parenthesis, a, right parenthesis models the time (in seconds) it takes to boil a perfect egg at an altitude of

a

aa meters. Which number type is more appropriate for the domain of

T

TT?

Choose 1 answer:

Answers

The appropriate number type for the domain of T(a) is the set of real numbers. It is one of the most common type of numbers used in mathematics. Real numbers are a combination of rational and irrational numbers.

These numbers include all rational and irrational numbers including positive and negative numbers. The boiling point of an egg can be changed by altitude. It will take a longer time to cook an egg in a higher altitude. The boiling point of water decreases by approximately 1 degree Celsius for every 300 meters rise in altitude.In this case, a is an altitude in meters. Thus, it could take longer or less time to cook an egg depending on the altitude.

Since T(a) models the time it takes to boil a perfect egg at a given altitude a, the domain of T(a) would be a set of all possible altitudes where one would like to boil an egg. The set of possible altitudes would be from minus 418 meters to 8,848 meters, and all real numbers in between. Therefore, the domain of T(a) is set of real numbers.

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Eric is working for an ad firm. He is responsible for storyboarding. Help him specify the different types of audio in the storyboard.


primary audio


secondary audio


background audio


He can make a note of scenes where surrounding noise is required.


>


He can make a note of external microphone to record audio simultaneously while


recording video.


He can make a note of additional music that he wants to add while editing.

Answers

Specify primary audio , secondary audio (sound effects/music), and background audio (ambient music) in the storyboard. Note scenes with surrounding noise, use an external microphone for recording, and plan additional music for editing.



In storyboarding for an ad firm, Eric needs to consider three types of audio: primary audio, secondary audio, and background audio. Primary audio refers to the main audio component that drives the narrative or delivers important information in the ad. This can include dialogue, voiceover, or any sound directly related to the main subject. Secondary audio supports the primary audio and adds depth to the storytelling. It can include sound effects, ambient noise, or music that complements the visuals. Background audio provides the overall atmosphere and mood of the ad. It can include ambient music or soundscapes that create the desired emotional tone.

Additionally, Eric should make notes of scenes where surrounding noise is required. This means capturing the environmental sounds that enhance the authenticity and realism of the ad, such as street noise, nature sounds, or crowd reactions. He should also consider using an external microphone to simultaneously record audio while filming the video. This ensures high-quality audio capture and reduces the reliance on the camera's built-in microphone, which may not provide optimal sound recording. Lastly, Eric can make a note of any additional music he intends to add during the editing process. This can involve selecting appropriate background tracks, jingles, or any other musical elements that enhance the overall impact of the ad. By carefully considering these audio aspects during storyboarding, Eric can create a compelling and immersive ad experience for the audience.

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The cost of all your ingredients for your cake is $3. 49. You consistently sell 150 cakes per week for $976 in total sales. What is your food cost percentage?

Answers

The cost of ingredients for a cake is $3.49, and the total weekly sales from selling 150 cakes are $976. We will calculate the food cost percentage. The food cost percentage is approximately 35.76%.

To calculate the food cost percentage, we need to determine the portion of the total sales that goes towards the cost of ingredients. The food cost is the cost of ingredients, and the total sales is the revenue generated.

First, we calculate the cost per cake:

Cost per cake = Cost of ingredients / Number of cakes sold

Cost per cake = $3.49 / 150 cakes

Cost per cake ≈ $0.0233

Next, we calculate the total cost of ingredients for all the cakes sold:

Total cost of ingredients = Cost per cake * Number of cakes sold

Total cost of ingredients = $0.0233 * 150 cakes

Total cost of ingredients = $3.495

Now, we can calculate the food cost percentage:

Food cost percentage = (Total cost of ingredients / Total sales) * 100

Food cost percentage = ($3.495 / $976) * 100

Food cost percentage ≈ 0.3576 * 100

Food cost percentage ≈ 35.76%

Therefore, the food cost percentage is approximately 35.76%.

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Mr. Brown is creating examples of systems of equations. He completes the steps to find the solution of the equation below.Based on this work, what is the solution to the system?(-4, -4)(0, 0)no solutioninfinitely many solutions

Answers

The solution to the system of equations is (-4, 4).

The system of equations is: x + y = -8 and x - y = 0
Mr. Brown can find the solution to the system of equations by solving it using the elimination method as follows:
x + y = -8 (Equation 1)
x - y = 0 (Equation 2)
Add Equation 1 and Equation 2.
Doing so will eliminate y from the equations and solve for x.
x + y + x - y = -8 + 0
2x = -8 x = -4
Substitute x = -4 into any of the original equations to solve for y.
Let's use Equation 2: x - y = 0 -4 - y = 0
y = -(-4) y = 4

Therefore, the solution to the system of equations is (-4, 4).

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Farid has two types of sticks: short ones, measuring 1 cm and long ones, measuring 3 cm. With which of the combinations below can he make a square, without breaking or overlapping the sticks?

Answers

Farid can make a square by using a combination of two short sticks and two long sticks.

To form a square without breaking or overlapping the sticks, the length of each side of the square must be equal. In this case, we have two types of sticks: short ones measuring 1 cm and long ones measuring 3 cm.

To determine which combinations can form a square, we need to consider the lengths of the sides and the total length of the sticks.

1. Using only short sticks (1 cm each):

To form a square, we need four equal sides. Since each short stick measures 1 cm, the total length of the four sides would be 4 cm. This combination does not work as the total length is too small to form a square.

2. Using only long sticks (3 cm each):

Similarly, using only long sticks would result in a total length of 12 cm for the four sides. This combination also does not work as the total length is too large to form a square.

3. Using a combination of short and long sticks:

In this case, we can combine short and long sticks to create a square. For example, using two short sticks and two long sticks would give us a total length of 2 cm + 2 cm + 3 cm + 3 cm = 10 cm. This combination can form a square with each side measuring 2.5 cm.

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7


9


10


11


Skylar travels 50 meters N and then goes 30 meters West before coming


straight back south 20 meters. What distance did she travel?


12

Answers

Skylar travels 50 meters N and then goes 30 meters West before coming straight back south 20 meters. She travelled approximately 36.06 meters.

Skylar's travels are as follows:

She travels 50 meters N and then goes 30 meters West before coming straight back south 20 meters.

To figure out the distance she covered, use the Pythagorean theorem.

Consider the horizontal and vertical distances covered. By the Pythagorean theorem, we can obtain the diagonal distance.

The Pythagorean theorem states that in a right triangle, the square of the hypotenuse (c) equals the sum of the squares of the other two sides (a and b).So, a² + b² = c²

Where,  a is the length of one of the legs (horizontal distance).

b is the length of the other leg (vertical distance).

c is the length of the hypotenuse (diagonal distance).

So, a = 30 meters (Westward),b = 20 meters (Southward),c = diagonal distance.

To find c, we can use the Pythagorean theorem:

c² = a² + b²

c² = (30)² + (20)²

c² = 900 + 400

c² = 1300

Take the square root of both sides to obtain c:

c = √1300c ≈ 36.06 meters

Therefore, Skylar travelled approximately 36.06 meters.

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Francis ran miles in of an hour. How many miles can Francis run in one hour?

Answers

If Francis ran 7.5 miles in 1/2 hour, then the distance he covered in one hour will be: m/x = 7.5/(1/2) = 15 miles.  We need the value of x in order to determine the distance he covered in one hour.

Given that Francis ran m miles in x hours.

To find how many miles can Francis run in one hour, we need to calculate how much distance he can cover in one hour.

Since he ran m miles in x hours, we can find how many miles he can run in 1 hour using unitary method as follows:

In x hours, he can run m miles.

Therefore, in 1 hour, he can run m/x miles or we can say that the speed of Francis is m/x miles per hour (mph).

Therefore, Francis can run (m/x) miles in one hour. According to the question, Francis ran miles in of an hour, we don't have the value of x, we cannot determine the exact distance he covered in 1 hour.

For instance, if Francis ran 5 miles in 1/2 hour, then the distance he covered in one hour will be:m/x = 5/(1/2) = 10 miles.

Similarly, if Francis ran 7.5 miles in 1/2 hour, then the distance he covered in one hour will be: m/x = 7.5/(1/2) = 15 miles. Thus, we need the value of x in order to determine the distance he covered in one hour.

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A scientist claims that a certain type of fabric is better able to repel water than another. Which option describes an experiment that will produce evidence that will support or refute her claim?.

Answers

To gather evidence supporting or refuting the scientist's claim about the fabric's water repellency, an experiment can be conducted by comparing the water repellency of the two fabrics using a standardized testing method, such as the water droplet test.

The experiment can be designed as follows: Select two fabrics, one being the fabric the scientist claims to be better at repelling water and the other being a different fabric for comparison. Cut identical-sized samples from each fabric and ensure they are in the same condition, such as cleanliness and moisture content.

To test the water repellency, a standardized method like the water droplet test can be employed. This involves placing a droplet of water on each fabric sample and observing how the water interacts with the surface. Factors to consider include the rate of absorption, spreading, or beading of the water droplet. Repeat the test multiple times to ensure consistency.

Measurements and observations should be recorded for both fabrics, noting any differences in water repellency. Statistical analysis can be performed to evaluate the significance of the observed variations.

If the fabric claimed to repel water shows consistently higher rates of beading or slower absorption compared to the other fabric, it would provide evidence supporting the scientist's claim. Conversely, if the two fabrics exhibit similar water repellency characteristics, it would challenge the claim.

By conducting this experiment with proper controls and measurements, evidence can be generated to either support or refute the scientist's claim about the fabric's water repellency.

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The number of people who like a particular video online triples every day after the day the video is posted. If 15 people like the video on the day it is posted, which inequality can be used to find the number of days, t , it takes for the number of people who have liked the video to reach more than 3 , 000 ? 15 + 3 t < 3 , 000 15 + 3 t < 3 , 000 15 + 3 t > 3 , 000 15 + 3 t > 3 , 000 15 ( 3 ) t < 3 , 000 15 ( 3 ) t < 3 , 000 15 ( 3 ) t > 3 , 000

Answers

The number of people who like a particular video online triples every day after the day the video is posted and 15 people like the video on the day it is posted.

We need to find an inequality which can be used to find the number of days, t, it takes for the number of people who have liked the video to reach more than 3000. The inequality which can be used to find the number of days, t, it takes for the number of people who have liked the video to reach more than 3000 is: 15 + 3t > 3000

The above inequality is correct because the number of people who like a particular video online triples every day after the day the video is posted. This means that on the 2nd day, 3 * 15 people like the video. On the third day, 3 * 3 * 15 people like the video, which is equal to 9 * 15 people.

Therefore, the total number of people who like the video on the 1st, 2nd and 3rd day is:

15 + 3 * 15 + 9 * 15 = 15 + 45 + 135 = 195

We can see that the number of people who like the video on the 1st day itself is only 15, which is very less. We need to get the number of people who have liked the video to reach more than 3000. Therefore, the above inequality is used.

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Linda randomly surveyed 20 teachers at her school about whether they prefer chalkboards or dry erase boards. She repeated the survey three times with three different sets of teachers. A 3-column table with 3 rows. Column 1 has entries Sample 1, Sample 2, Sample 3. Column 2 is labeled Chalk with entries 12, 9, 1. Column 3 is labeled Dry Erase with entries 8, 11, 19. Which pair of Linda’s samples seems to have the lowest variability and, therefore, are representative samples?.

Answers

Linda randomly surveyed 20 teachers at her school about whether they prefer chalkboards or dry erase boards. She repeated the survey three times with three different sets of teachers. A 3-column table with 3 rows.

Column 1 has entries Sample 1, Sample 2, Sample 3. Column 2 is labeled Chalk with entries 12, 9, 1. Column 3 is labeled Dry Erase with entries 8, 11, 19. Which pair of Linda’s samples seems to have the lowest variability and, therefore, are representative samples.

The variability of a sample measures the extent to which the data points differ from each other. The variability of a sample is low if the data points are close to each other. A low sample variability indicates that the data points are representative of the population, while a high sample variability indicates that the data points are not representative of the population.In this example, there are three sets of data. To determine which of the three samples has the lowest variability, we must first compute the variance of each sample.

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Classify each number according to its value. 4. 2 × 10-6 2. 1 × 10-3 3. 1 × 10-2 3. 2 × 10-5 3. 5 × 10-4 5. 8 × 10-3 5. 2 × 10-4.

Answers

The given numbers can be classified into two categories: small values and very small values (closer to zero). All the given numbers have values that are either small or very small, with some being closer to zero than others based on the number of places the decimal point is moved to the left.

In scientific notation, numbers are expressed as a product of a decimal number between 1 and 10, and a power of 10. The power of 10 indicates the number of places the decimal point is moved to the right (if the exponent is positive) or to the left (if the exponent is negative).

Based on the given numbers:

1. 2 × 10^(-6): This number is very small, as the exponent is negative and indicates that the decimal point is moved 6 places to the left.

2. 1 × 10^(-3): This number is a small value, with the exponent indicating a movement of 3 places to the left.

3. 1 × 10^(-2): Similar to the previous number, this is also a small value, with the exponent indicating a movement of 2 places to the left.

4. 2 × 10^(-5): This number is very small, with the exponent indicating a movement of 5 places to the left.

5. 5 × 10^(-4): This number is a small value, with the exponent indicating a movement of 4 places to the left.

6. 8 × 10^(-3): This number is a small value, with the exponent indicating a movement of 3 places to the left.

7. 2 × 10^(-4): This number is a small value, with the exponent indicating a movement of 4 places to the left.

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Nick found the quotient of 8. 64 and 1. 25 × 105. His work is shown below. 1. (8. 64 × 101) (1. 25 × 105) 2. (8. 64 1. 25 ) (101 105 ) 3. 6. 912 × 10–4 Analyze Nick’s solution. Is he correct? If not, what was his mistake? Yes, Nick is correct. No, the power multiplied to 8. 64 should have an exponent of 0. No, he needed to subtract the coefficients. No, he needed to add the exponents.

Answers

Nick's solution is incorrect. His mistake lies in step 2 of his work.

In step 2, Nick incorrectly multiplies the coefficients (8.64 and 1.25) and also multiplies the exponents (101 and 105). However, when dividing two numbers written in scientific notation, the coefficients should be divided, not multiplied, and the exponents should be subtracted, not added.

The correct steps for dividing 8.64 by 1.25 × 10^5 are as follows:

1. Rewrite the numbers in scientific notation:

  8.64 = 8.64 × 10^0

  1.25 × 10^5 = 1.25 × 10^5

2. Divide the coefficients:

  8.64 ÷ 1.25 = 6.912

3. Subtract the exponents:

  0 - 5 = -5

Therefore, the correct quotient is 6.912 × 10^-5, not 6.912 × 10^-4 as stated in Nick's solution.

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A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 500 with a standard deviation of 90. The scores are normally distributed. The percentile rank of a score of 667 is _________

Answers

The percentile rank of a GRE score of 667, based on a population mean of 500 and a standard deviation of 90, is approximately 96.6%.


To calculate the percentile rank of a GRE score of 667, we need to determine how many scores fall below this value in a normal distribution with a mean of 500 and a standard deviation of 90.

First, we calculate the z-score, which represents the number of standard deviations a particular score is from the mean. The z-score can be calculated as (667 - 500) / 90 = 1.8556.

Next, we use a z-table or a statistical calculator to find the area under the normal curve to the left of the z-score. This area represents the percentile rank.

Looking up the z-score in the table or using a calculator, we find that the percentile rank of a score of 667 is approximately 96.6%.



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ALMN, LM || OP. Given that NL=35, NO=20, and NM=49, find NP.
L
O
N
M
NP =

Answers

Answer:

NP=28

Step-by-step explanation:

20/35=x/49

cross multiply

35x=20x49

35x=980

x-980/35

x=28

Let f be defined as shown. If the domain is restricted to [9,5}, which statement is true? Click on the correct answer.

Answers

The statement "f is not defined for any x-values in the domain [9, 5]" is true. This means that there are no corresponding y-values or outputs for any x-values within this restricted domain. Therefore, The range of f on the domain [9, 5] is approximately equal to [5, 5].

The given question mentions that the domain of function f is restricted to [9, 5]. However, this interval is not valid because the lower bound (9) is greater than the upper bound (5), which contradicts the conventional ordering of intervals. The correct representation of the interval should be [5, 9].

Since the domain [9, 5] is not a valid interval, it means that there are no x-values within this range that can be plugged into function f. As a result, f is not defined for any x-values in the domain [9, 5]. This means that there are no corresponding y-values or outputs for any x-values within this restricted domain.

The range of f on the domain [9, 5] is approximately equal to [5, 5].

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he subjectively determined maximum amount a customer would pay for a product is its ______ price. Multiple choice question. overwhelming exploitative unfair reservation

Answers

The subjectively determined maximum amount a customer would pay for a product is its reservation price. The main answer is reservation.

An individual's reservation price is the highest price they are prepared to pay for a product or service. The maximum amount that an individual is willing to pay for a product or service is referred to as the reservation price, which is determined subjectively based on the individual's perception of the product's or service's worth.

To put it another way, the maximum amount a buyer will pay for an item is determined by his or her perception of the item's worth, which is influenced by the buyer's individual tastes and preferences.For example, if a person is willing to pay $50 for a pizza, that is their reservation price for a pizza. If the price of the pizza is higher than their reservation price, they are likely to leave without making a purchase. A reservation price is influenced by factors such as product quality, perceived benefits, personal income, and budget constraints.

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Levi is a plumber, and his coworker Tom is an electrician. Levi charges customers a fee of $60 just to come to their houses and then $1 per minute that he is there. Tom also charges a fee of $40 for a home visit, plus an additional $3 per minute. Last week the coworkers went to a job site together, spent the same amount of time working, and earned the same amount. How much did each one earn?

Answers

Levi charges customers a fee of $60 just to come to their houses and then $1 per minute that he is there. Levi earned $80 and Tom earned $100.

An equation is a mathematical statement that asserts the equality of two expressions. It consists of two sides, often referred to as the left-hand side (LHS) and the right-hand side (RHS), connected by an equal sign (=). The equal sign indicates that the two sides have the same value or are equivalent.

Levi charges customers $60 as a base fee and then $1 per minute that he spends on the job. Tom charges $40 for a home visit and $3 per minute. Levi and Tom spent the same amount of time working and earned the same amount of money. Let's calculate their earnings.

Let's assume they worked for t minutes each. Levi's earning equation will be:

E1 = 60 + t

Tom's earning equation will be:

E2 = 40 + 3t

Their earnings are the same so:

60 + t = 40 + 3t

60 - 40 = 3t - t

t = 20

So they both worked for 20 minutes. Let's substitute 20 into either of their equations and find their earnings:

E1 = 60 + t = 60 + 20 = $80

E2 = 40 + 3t = 40 + 3(20) = $100

Therefore, Levi earned $80 and Tom earned $100.

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In two triangles the ratio of their area is 4:3 and that of their height is 3:4. Find the ratio of their bases?

Answers

The ratio of their bases is 2:3.

Let's assume the bases of the two triangles are b1 and b2, and their heights are h1 and h2, respectively.

We know that the ratio of their areas is given as 4:3. This implies (1/2) * b1 * h1 : (1/2) * b2 * h2 = 4:3. Simplifying this equation, we get b1 * h1 : b2 * h2 = 4:3.

Given that the ratio of their heights is 3:4, we have h1 : h2 = 3:4.

Using these two ratios, we can find the ratio of their bases by substituting the values. We have (b1 * 3) : (b2 * 4) = 4:3.

Cross-multiplying, we get 3b1 = 4b2, which simplifies to b1 : b2 = 4:3.

Therefore, the ratio of their bases is 4:3.

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When rolling a biased dice 100 times, the expected number of odd outcomes is three times the expected number


of even outcomes. Find the probability of an odd outcome.

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The probability of an odd outcome when rolling a biased dice can be found by dividing the expected number of odd outcomes by the total number of possible outcomes. In this scenario, the expected number of odd outcomes is three times the expected number of even outcomes. Therefore, the probability of an odd outcome is 3/4 or 0.75.

To find the probability of an odd outcome, we first need to determine the expected number of odd and even outcomes. Let's denote the expected number of odd outcomes as O and the expected number of even outcomes as E. According to the given information, O = 3E.
Since the dice is biased, we can assume that the probabilities of rolling an odd or even number are not equal. Let's represent the probability of rolling an odd number as p and the probability of rolling an even number as q.
The total number of outcomes when rolling a dice is 6 (1, 2, 3, 4, 5, 6). Therefore, we have the equation: O + E = 6.
Substituting O = 3E, we can rewrite the equation as: 3E + E = 6, which simplifies to 4E = 6.
Solving for E, we find E = 6/4 = 1.5.
Since O = 3E, we have O = 3 * 1.5 = 4.5.
The probability of an odd outcome can be calculated as O/(O + E), which is 4.5/(4.5 + 1.5) = 4.5/6 = 3/4 or 0.75.

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what is the value of x in the figure below

Answers

Answer:

24

Step-by-step explanation:2x+42= 90

2x=90-42

2x=48

x=24

Step-by-step explanation:

2x°+42°=90°

2x+42°-42°=90°-42°

2x/2=48°/2

x=24°

But Iam not sure I just try

Determine the period. Acellus

Answers

Answer: 15

Step-by-step explanation:

Period=distance between 2 top points.

15

Select the best estimate for the combined amount of dog food given in one day.

Choose 1 answer:

Choose 1 answer:


(Choice A)

A

\dfrac12 \text{ kg}

2

1



kgstart fraction, 1, divided by, 2, end fraction, start text, space, k, g, end text


(Choice B)

B

1 \text{ kg}1 kg1, start text, space, k, g, end text


(Choice C)

C

1\dfrac12 \text{ kg}1

2

1



kg

Answers

The correct option for the question is C.1 1/2 kg.How to calculate the combined amount of dog food given in one day?Combined amount of dog food refers to the total amount of food given to all the dogs.

To calculate it, we will add up the amounts of food given to each dog.For example, if 1 kg of food is given to one dog and 1/2 kg of food is given to another, then the combined amount of food given in one day would be 1 kg + 1/2 kg = 1 1/2 kg.

Therefore, the best estimate for the combined amount of dog food given in one day is 1 1/2 kg.

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