What is the numerical coefficient of the variable m? -16m

Answers

Answer 1

It is necessary to understand the concepts of algebraic equations in order to determine the numerical coefficients of the variables.

The numerical coefficient of the variable m in -16m is -16. In algebra, a coefficient is a numerical or constant value placed in front of a variable. For example, in the algebraic term 5x, 5 is the coefficient. The coefficient is the number that is multiplying the variable. In the algebraic term -16m, -16 is the coefficient.

Hence, the numerical coefficient of the variable m in -16m is -16. The coefficient term represents a fixed or constant quantity in a term, expression or equation. It is important to note that a coefficient can either be a positive or negative number and it can be a fraction or a decimal as well depending on the given problem.

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Related Questions

1. Use each of the Numbers once, In any order. To form at least TWO number sentences that equal the target number



TARGET NUMBER: 2



17, 5, 8, 2, 9



2. Let A=3 B=28 C=50


D=12 E=2 F=18


Write a minimum of 5 different


relationship statements for the


variables.


Ex. DE=B-2E

Answers

Using 17 + 5 - 8 + 9 - 2 = 21 and 2 + 9 - 8 + 17 - 5 = 15 as two number sentences, we can form the target number of 2.
1) 2C = BF
2) B - 3E = A
3) C - A = 2D
4) F - A + B = 47
5) 3E - B + 2A = 8

In the first statement, the variable C is multiplied by 2, and the result is equal to the product of variables B and F. In the second statement, the product of variables E and 3 is subtracted from B, and the result is equal to A.

In the third statement, the difference between variables C and A is equal to twice the value of variable D. In the fourth statement, the sum of variables F and B is subtracted from A, and the result is equal to 47.

In the fifth statement, twice the value of variable A is added to 3 times the value of variable E, and this sum is subtracted from the value of variable B, which gives 8.

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An IV blood administration is in place. A bag of 376 ml is hung at

1100hrs. How long will this bag take to infuse at maximum time?

Answers

The time it would take for the bag to infuse at the maximum time would be the value of 1. 5 hours.

How to find the time ?

The maximum rate of infusion for an IV bag is 250 ml/hour. This means that the maximum time it would take for the bag to infuse is:

= Quantity in bag / Maximum rate of infusion

Therefore, it will take:

= 376 ml / 250 ml/hour

= 1. 5 hours to infuse the entire bag

In conclusion, the time it would take for the bag to infuse at the maximum time is 1. 5 hours.

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A regulation baseball has a diameter of about 3 in. What is the best approximation for the volume of this baseball? 14. 13 in³ 28. 26 in³ 84. 78 in³ 113. 04 in³ baseball with diameter of 3 inches.

Answers

The best approximation for the volume of a regulation baseball with a diameter of about 3 inches is 14 in³.

The volume of a sphere is given by the formula V = (4/3)πr³, where V represents the volume and r represents the radius. In this case, we have the diameter, which is 2 times the radius.

The radius of a baseball with a diameter of about 3 inches is approximately 3/2 = 1.5 inches.

Substituting the radius into the volume formula:

V = (4/3)π(1.5)³ = (4/3)(3.14)(1.5)³ = (4/3)(3.14)(3.375) ≈ 14 in³

Therefore, the best approximation for the volume of the baseball is 14 in³.

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Which histogram depicts a higher standard deviation.

Answers

Histograms visualize the distribution and spread of data. A higher standard deviation implies greater variability in the data points. In a histogram, a wider shape indicates a larger spread of data and thus a higher standard deviation. Therefore, the histogram with a broader shape depicts a higher standard deviation.

To determine which histogram depicts a higher standard deviation, we need to look for the histogram with a greater spread or dispersion of data. In a histogram, a higher standard deviation indicates that the data points are more spread out or have a larger variability. This means that the values are more scattered from the mean. Therefore, the histogram with a wider and more spread-out shape would depict a higher standard deviation, as it indicates a greater variability in the data.

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Does the table represent a function? Why or why not?
xy
3 1
4 3
5 2
6 5
6 6
A. Yes, because every x-value corresponds to exactly one y-value.
B. No, because one x-value corresponds to two different y-values.
C. Yes, because there are different y-values.
D. No, because the y-values are positive.

Answers

Option A, "Yes, because every x-value corresponds to exactly one y-value," accurately describes the situation presented in the table. Option A is the proper response, so.

The table represents a function.

A mathematical relationship known as a function is one in which every input (x-value) has exactly one corresponding output (y-value). In the given table:

xy

3 1

4 3

5 2

6 5

6 6

Every x-value in the table corresponds to exactly one y-value. There are no repeated x-values, and for each x-value, there is only one corresponding y-value. The definition of a function is met by this.

The answer given in Option A, "Yes, because every x-value corresponds to exactly one y-value," appropriately sums up the situation shown in the table. Option A is the proper response, so.

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¿Qué altura tiene un poste que proyecta una sombra de 16m,al mismo tiempo que un observador de 1.80m de estatura proyecta una sombra de 1.20m?

Answers

To determine the height of the pole, we can use the concept of similar triangles. The ratios of corresponding sides of similar triangles are equal.The height of the pole is 24 meters.

By setting up a proportion between the height of the pole and the length of its shadow and the height of the observer and the length of their shadow, we can find the height of the pole.

Let's denote the height of the pole as h. We can set up a proportion between the height of the pole and the length of its shadow and the height of the observer and the length of their shadow:

h / 16 = 1.80 / 1.20

By cross-multiplying and solving for h, we get:

h = (16 * 1.80) / 1.20 = 24

Therefore, the height of the pole is 24 meters.

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Mark wants to buy a video game for $39.99, he has a 30% discount and then pays 5% sales tax. What is the final cost of the video game?

Answers

Given the cost of the video game is $39.99, Mark gets a discount of 30%.Content loaded means there's enough information available to solve the problem. Here's how to find out the final cost of the video game. First, calculate the discount on the cost of the video game:$39.99 × 30/100 = $11.997

This gives us the discount that Mark gets on the video game. So, the cost of the video game after discount will be: Cost of the video game = $39.99 - $11.997 = $27.993Now, let's add the sales tax. The sales tax is 5%. Thus, the sales tax will be: Sales tax = $27.993 × 5/100 = $1.39965So, the final cost of the video game will be :Final cost = $27.993 + $1.39965 = $29.39265Thus, the final cost of the video game after the discount and the sales tax is $29.39.

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Which triangle is a translation of triangle X?




On a coordinate plane, triangle X is shifted 3 units down and 4 units to the left to form triangle B.

Answers

Triangle B is a translation of triangle X.

What is translation?

The term "translation" refers to the movement of an object from one position to another. The object being translated is the same size and shape as it was before being moved. It is merely moved to a new location. Each point on the object is moved the same distance and in the same direction, resulting in a new figure that is similar to the original.

Let's find out which triangle is a translation of triangle X.

Given that Triangle X is moved 3 units down and 4 units to the left to create triangle B. We can figure out that triangle B is the translated version of triangle X.

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In 1833 A ship arrived in Calcutta with 120 tons remaining of its cargo of ice one third of the original cargo was lost because it had melted on the voyage how many tons of ice was the ship carrying when it set sail

Answers

Therefore, the ship was carrying 180 tons of ice when it set sail.

In 1833, a ship arrived in Calcutta with 120 tons of remaining cargo of ice, and one third of the original cargo was lost due to melting on the voyage.

We need to determine the original amount of cargo of ice the ship was carrying when it set sail.

Let's solve this problem step-by-step.

Step 1:

Let's denote the original amount of cargo of ice the ship was carrying when it set sail as x.

Step 2:

One-third of the original cargo was lost due to melting on the voyage.

Thus, the remaining two-thirds cargo of ice reached Calcutta.

Hence, the remaining cargo of ice was 120 tons.

We can write it mathematically as; 2/3 x = 120 tons

Step 3:

Solving for x, the original amount of cargo of ice the ship was carrying,  we can cross-multiply the above equation as: 2x = 3 × 120 tons

2x = 360 tons

x = 360/2 tons

x = 180 tons

The original amount of cargo of ice the ship was carrying when it set sail was 180 tons.

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Work out an approximate solution to x3 + 2x – 1 = 0


Use the iteration Xn+ 1 =


1


x + 2


Start with Xy = 1


Give your answer to 2 decimal places.

Answers

Answer:

x = 0.45 (2 d.p.)

Step-by-step explanation:

Iteration is a numerical method used to approximate solutions to equations where exact solutions are difficult or impossible to obtain analytically.

It involves putting an approximate value of the solution into an iteration formula to calculate a new value based on the previous one. This process is repeated multiple times, with each iteration generating a more accurate approximation of the solution.

The iteration formula is just a rearrangement of the equation, leaving a single ‘x’ on one side.

For this problem, we have already been given the iteration formula and the starting value of x₁. However, sometimes you will need to determine the iteration formula. For example, to determine the iteration formula for x³ + 2x - 1 = 0, rearrange the equation as follows:

[tex]\begin{aligned}x^3+2x-1&=0\\x^3+2x&=1\\x(x^2+2)&=1\\x&=\dfrac{1}{x^2+2}\end{aligned}[/tex]

Therefore, the iteration formula is:

[tex]\boxed{x_{n+1}=\dfrac{1}{{x_n}^2+2}}[/tex]

To calculate the approximate solution to x³ + 2x - 1 = 0 using the given iteration formula, start by substituting  x₁ = 1 into the formula to find x₂:

[tex]x_2=\dfrac{1}{x_{1}{^2}+2}=\dfrac{1}{(1)^2+2}=\dfrac{1}{1+2}=\dfrac{1}{3}=0.3333...[/tex]

Substitute the found value of x₂ into the formula to find the value of x₃:

[tex]x_3=\dfrac{1}{x_{2}{^2}+2}=\dfrac{1}{\left(\frac{1}{3}\right)^2+2}=\dfrac{1}{\frac{1}{9}+2}=\dfrac{1}{\frac{19}{9}}=\dfrac{9}{19}=0.47368...[/tex]

Continue this way until the solutions are the same when rounded to 2 d.p:

[tex]x_4=0.44956...[/tex]

[tex]x_5=0.45411...[/tex]

[tex]x_6=0.45326...[/tex]

[tex]x_7=0.45342...[/tex]

[tex]x_8=0.45339...[/tex]

[tex]x_9=0.45339...[/tex]

Therefore, the approximate solution to x³ + 2x - 1 = 0 is 0.45, rounded to 2 decimal places.

Additional information

The quickest way to compute each solution (each value in the iteration sequence) is to enter the value of x₁ into the calculator and press "=" so that the value of x₁ becomes the "answer". Then type the iteration formula into the calculator, replacing xₙ with "answer":

[tex]\boxed{\dfrac{1}{\text{Ans}^2+2}}[/tex]

Each time you press "=", the next value of xₙ in the sequence is computed.

Carol had $15,500 in visa sales one month. How much more did she net than if sales had been $14,300?

Answers

Carol netted $1,200 more with $15,500 in Visa sales compared to if sales were $14,300.

1. Calculate the difference between the two sales amounts: $15,500 - $14,300 = $1,200.

By subtracting $14,300 from $15,500, we find that Carol's sales were $1,200 higher with $15,500 in Visa sales.

2. The sales amount represents the total revenue generated from Visa transactions, but to determine how much Carol "netted," we need to consider any expenses or costs associated with these sales.

3. Subtract any expenses or costs from the total revenue to calculate the net amount. However, since the question does not provide information about expenses or costs, we'll assume that the sales amount refers to the net amount.

4. Therefore, the difference of $1,200 represents the additional money Carol received with $15,500 in Visa sales compared to if sales were $14,300.

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A vendor has $22.00 and wants to buy bushels of corn. The vendor finds a farmer who sells each bushel of corn for $3.00 and charges a fixed delivery fee of $5.50.

Answers

The vendor cannot purchase a fraction of a bushel, the vendor can afford to buy a maximum of 5 bushels of corn with the given amount of money.

To determine how many bushels of corn the vendor can afford to buy, we need to consider the cost of each bushel of corn and the fixed delivery fee. Here's how we can calculate it:

Subtract the fixed delivery fee from the total amount of money the vendor has:

$22.00 - $5.50 = $16.50

Divide the remaining amount of money by the cost per bushel of corn to find the maximum number of bushels the vendor can buy:

$16.50 ÷ $3.00 = 5.5 bushels

Since the vendor cannot purchase a fraction of a bushel, the vendor can afford to buy a maximum of 5 bushels of corn with the given amount of money.

Please note that in this calculation, we assumed that the vendor would spend all of the available money on purchasing corn, without considering any additional expenses or constraints.

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Molly has biweekly gross earnings of $839. 52. By claiming 1 more withholding allowance, Molly would have $16 more in her take home pay. How many withholding allowances does Molly currently claim? a. 1 b. 2 c. 3 d. 4 Please select the best answer from the choices provided A B C D.

Answers

Molly currently claims 2 withholding allowances which can be determined by using rules of allowance.

Given that,

Molly has biweekly gross earnings of $839. 52.

By claiming 1 more withholding allowance,

Molly would have $16 more in her take-home pay.

We have to determine,

How many withholding allowances does Molly currently claim?

According to the question,

Molly has biweekly gross earnings of $839. 52.

By claiming 1 more withholding allowance,

Molly would have $16 more in her take-home pay.

The withholding allowance is used by a person to pay less amount of tax on his or her income to the government.

Molly has biweekly gross earnings of $839. 52.

By claiming 1 more withholding allowance,

Molly would have $16 more in her take-home pay.

Therefore,

It is given that Molly has taken 1 more withholding allowance to pay tax less by the amount of $16.

So he must have possessed at least 1 allowance previously and added 1 more.

So, the minimum number of allowance possessed by Molly = 2

Hence, Molly currently claims 2 withholding allowances.

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A subwoofer box for sound costs $260. 40 after a price increase. The cost before the price increase was $240. 0. What was the approximate percent of the price increase


Will be awarded brainliest :) PLS HELPP

Answers

The approximate percent of the price increase is approximately 8.5%. To find the approximate percent of the price increase, we can use the following formula: Percent Increase = ((New Value - Old Value) / Old Value) * 100

To calculate the approximate percent of the price increase, we can follow these steps:

Determine the old value: In this case, the old value is the cost before the price increase, which is given as $240.0.

Determine the new value: The new value is the cost after the price increase, which is given as $260.40. Calculate the difference: Subtract the old value from the new value to find the increase in price. In this case, it is $260.40 - $240.0 = $20.40.

Calculate the percent increase: Divide the difference by the old value, then multiply by 100 to express it as a percentage. In this case, it is (20.40 / 240.0) * 100 ≈ 8.5%.

Therefore, the approximate percent of the price increase is approximately 8.5%. This means that the price increased by around 8.5% from its original value of $240.0 to the new value of $260.40.

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Que es la circunferencia

Answers

Answer: you can also search what you said in eniglish aand it would give u a calculater _--_-   (

Step-by-step explanation:The circumference is the length of any great circle, the intersection of the sphere with any plane passing through its centre. A meridian is any great circle passing through a point designated a pole.

Eva drove to work in rush hour traffic, going just 30 miles in 1 hour and 18 minutes. Later that day, she left work early to avoid the rush and was able to take the same route home in 31 minutes. What was Eva's average speed overall?

Answers

Hence, Eva's average speed overall is 35.29 miles per hour

The given information can be tabulated as follows: Distance, Time, Speed

Eva drove to work30 miles1 hour 18 minutes1.18 hours

Eva drove to work30 miles1.18 hours

Eva left work31 minutes0.52 hours

Eva left work30 miles0.52 hours

It is given that Eva drove to work in rush hour traffic, going just 30 miles in 1 hour and 18 minutes, i.e. 1.18 hours.

Her speed during this time can be calculated as follows:

Speed = Distance / Time

Speed = 30 / 1.18 = 25.42 miles per hour

Similarly, when Eva left work early to avoid the rush and was able to take the same route home in 31 minutes, i.e. 0.52 hours.

Her speed during this time can be calculated as follows:

Speed = Distance / Time

Speed = 30 / 0.52 = 57.69 miles per hour

Therefore, Eva's average speed overall can be calculated as follows:

Average speed = Total distance / Total time

Total distance = 30 + 30 = 60 miles

Total time = 1.18 + 0.52 = 1.7 hours

Average speed = 60 / 1.7 = 35.29 miles per hour

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When performing a dilation or a composition of a dilation and rigid transformations on a triangle, what properties of the original triangle preserved?

Answers

When performing a dilation or a composition of a dilation and rigid transformations on a triangle, several properties of the original triangle are preserved. In both cases, the shape and orientation of the triangle remain the same while the size and location of the triangle change.

During a dilation, the original triangle is extended or shrunk in size uniformly. All sides of the triangle are extended or shrunk by the same factor, which is the scale factor of the dilation. The angle measures of the triangle remain unchanged during dilation, and the corresponding angles of the dilated triangle remain equal.In a composition of a dilation and rigid transformation, the original triangle is first dilated and then subjected to a rigid transformation like rotation, translation, or reflection.

The shape and orientation of the original triangle are preserved, and the size and location of the dilated triangle change. The angle measures of the triangle remain unchanged during dilation, and the corresponding angles of the dilated triangle remain equal. During the subsequent rigid transformation, the corresponding sides and angles of the dilated triangle are also preserved.

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10 year ago, the ratio o fjeremy's age to ranyd's age to Kaden's age was 4:3:1. the sum of thie r presesnt age is 102. Find randy's age now


Answers

To find Randy's age now, we need to use the information provided about the ratio of Jeremy's age, Randy's age, and Kaden's age 10 years ago, as well as the sum of their present ages. By setting up equations based on the given information, we can solve for Randy's age now.

Let's assume that Jeremy's age 10 years ago was 4x, Randy's age was 3x, and Kaden's age was x. This satisfies the given ratio of 4:3:1.

Now, 10 years have passed, so we need to consider their present ages. Jeremy's present age would be 4x + 10, Randy's present age would be 3x + 10, and Kaden's present age would be x + 10.

The sum of their present ages is given as 102, so we can set up the equation:

(4x + 10) + (3x + 10) + (x + 10) = 102

Simplifying the equation, we have:

8x + 30 = 102

Subtracting 30 from both sides, we get:

8x = 72

Dividing both sides by 8, we find:

x = 9

Therefore, Randy's age now is 3x + 10, which is equal to 3(9) + 10 = 37 years.

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Sam road his bike 2/5 of a mile and walked another 3/4 of a mile . How far did he travel ?

Answers

The distance Sam traveled is 1.15 miles.

Given: Sam road his bike 2/5 of a mile and walked another 3/4 of a mile.

To find the total distance Sam traveled,

we need to add the distance he traveled while riding his bike to the distance he traveled on foot.

To do that, we need to find a common denominator for 2/5 and 3/4.

The smallest common multiple of 5 and 4 is 20.

So, we'll rewrite 2/5 and 3/4 with a denominator of 20.2/5 = 8/20 (multiply the numerator and denominator by 4)

3/4 = 15/20 (multiply the numerator and denominator by 5).

Now, we can add these two fractions together: 8/20 + 15/20 = 23/20.

So, Sam traveled 23/20 of a mile, which is equivalent to 1 3/20 miles or 1.15 miles (rounded to the nearest hundredth).

Therefore, the distance Sam traveled is 1.15 miles.

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Cinia has made a pyramid model for her history project at school. The pyrarrid model has a square base. Each triangular side of the model has a


base length of 10 centimeess and a slant height of ē. 9 centimeters. Olivia wants to wrap the pyramid in wrapping paper before putting it into her


school bag


How much wrapping paper will Ona need to cover the pyramid?

Answers

Olivia will need 280 square centimeters of wrapping paper to cover the pyramid for her history project.

To calculate the amount of wrapping paper Olivia will need to cover the pyramid, we need to find the total surface area of the pyramid, including the base and the triangular sides.

The base of the pyramid is a square, so its area can be found by squaring the length of one side. Given that the base length is 10 centimeters, the area of the base is 10^2 = 100 square centimeters.

The triangular sides of the pyramid are all congruent, so we can calculate the area of one triangular side and multiply it by the number of sides (4 in this case) to get the total area.

To find the area of one triangular side, we can use the formula for the area of a triangle:

Area = (1/2) * base * height

In this case, the base length is 10 centimeters, and the height is the slant height of 9 centimeters.

Area = (1/2) * 10 * 9 = 45 square centimeters

Since there are four triangular sides, the total area of the triangular sides is 4 * 45 = 180 square centimeters.To calculate the total surface area, we need to add the area of the base and the area of the triangular sides:

Total surface area = base area + triangular side area

Total surface area = 100 + 180 = 280 square centimeters

Therefore, Olivia will need 280 square centimeters of wrapping paper to cover the pyramid for her history project.

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Jen is a member of their school’s women soccer club. She noticed that the angle formed at the corner of the soccer field was similar to her lesson in Math that morning. Which type of angle is it?

Answers

An angle is a geometric figure formed by two rays or lines that share a common endpoint called the vertex.

If Jen noticed that the angle formed at the corner of the soccer field was similar to her math lesson, we can explore the different types of angles she might be referring to.

Right Angle: A right angle measures exactly 90 degrees and forms a square corner. It is a common angle found in everyday life, such as the corners of buildings or the intersection of two perpendicular lines. Right angles are often studied in geometry due to their properties and applications in various mathematical concepts.

Acute Angle: An acute angle measures less than 90 degrees. It is a smaller angle that appears sharp and pointed. Examples of acute angles can be found in triangles, where all three angles are acute.

Obtuse Angle: An obtuse angle measures more than 90 degrees but less than 180 degrees. It is a wider angle that appears larger and open. Examples of obtuse angles can be found in shapes like rectangles or triangles with one angle greater than 90 degrees.

Straight Angle: A straight angle measures exactly 180 degrees, forming a straight line. It is a flat angle that doesn't bend or deviate. Straight angles are commonly found in line segments or in shapes like straight edges of polygons.

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D. If y/z = 0. 7, what is the measure of α to the nearest degree?

Answers

If y/z = 0.7, then α can be determined using the trigonometric ratio "tan".

Since y/z = 0.7, we can let y = 7x and z = 10x. Thus, y + z = 7x + 10x = 17x.Also, we have tan α = y/x = (7/10)x/x = 7/10.So, we have tan α = 7/10.Thus, α = tan⁻¹(7/10).

Now, we can use a calculator to evaluate the angle to the nearest degree.

Using a scientific calculator, we can compute tan⁻¹(7/10) ≈ 35.54°.

Hence, the measure of α to the nearest degree is 36° (since we round up to the nearest degree).

That α measures 36° to the nearest degree.

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Elizabeth’s credit card computes her finance charges using the previous balance method and a 30-day billing cycle. The table below shows Elizabeth’s credit card transactions in July. Date Amount ($) Transaction 7/1 969. 26 Beginning balance 7/3 45. 00 Payment 7/10 67. 48 Purchase 7/12 20. 00 Payment 7/28 85. 00 Payment If Elizabeth has an APR of 14. 61%, how much will her July finance charge be? a. $9. 97 b. $12. 62 c. $11. 80 d. $10. 80.

Answers

To calculate Elizabeth's finance charge using the previous balance method, we need to determine the average daily balance and then apply the APR (Annual Percentage Rate) to calculate the finance charge.

First, let's calculate the average daily balance:

Beginning Balance: $969.26

Days until payment: 2 (from July 1st to July 3rd)

Payment: $45.00

Days until purchase: 7 (from July 3rd to July 10th)

Purchase: $67.48

Days until payment: 2 (from July 10th to July 12th)

Payment: $20.00

Days until payment: 16 (from July 12th to July 28th)

Payment: $85.00

To calculate the average daily balance, we sum up the balances for each day and divide it by the total number of days in the billing cycle (30 days).

Average Daily Balance = (969.26 × 2 + 0 × 7 + 67.48 × 2 + 0 × 16) / 30 = $85.95

Next, we can calculate the finance charge using the APR:

Finance Charge = Average Daily Balance × (APR / 365) × Number of Days in the Billing Cycle

Finance Charge = 85.95 × (0.1461 / 365) × 30 ≈ $9.97

Therefore, Elizabeth's July finance charge will be approximately $9.97. The correct answer is option a.

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Identify the expression as an equation containing factors, a fractional equation, or a proportion.


2x/x+7 - x/x+3 = 1 + 1/x^2+10+21


A. Proportion

B. Fractional Equation

C. Equation containing fractions

Answers

The given expression is an equation containing fractions.

Given expression is:

[tex]$$\frac{2x}{x+7} - \frac{x}{x+3} = 1 + \frac{1}{x^2+10x+21}$$[/tex]

We can rewrite the given expression as follows:

[tex]$$\frac{2x(x+3)-x(x+7)}{(x+7)(x+3)}=\frac{x^2+10x+22}{(x+3)(x+7)}$$[/tex]

Simplifying the numerator and denominator of the above expression,

we get:[tex]$$\frac{x^2-4x-21}{(x+7)(x+3)} = \frac{x^2+10x+22}{(x+7)(x+3)}$$[/tex]

On simplifying, we get the following equation:

[tex]$$x^2-4x-21=x^2+10x+22$$[/tex]

Simplifying the above equation, we get:

$$14x=-43$$

On dividing by 14 on both sides,

we get:[tex]$${x=-\frac{43}{14}}$$[/tex]

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In order for a ladder to reach a height of 10 feet it needs to be placed at a 75⁰ angle to the ground. The ground already has an elevation of 15⁰.what degree does the ladder need to me set at?

Answers

To reach a height of 10 feet while accounting for the ground elevation of 15⁰, the ladder needs to be set at an angle of approximately 80.77⁰.

When placing the ladder on the ground, we need to consider both the desired height and the ground elevation. Let's denote the angle at which the ladder needs to be set as x⁰.

To find the value of x⁰, we can use trigonometry. In this case, we'll use the tangent function. The tangent of an angle is equal to the ratio of the length of the opposite side to the length of the adjacent side. In this scenario, the opposite side is the height of the ladder (10 feet), and the adjacent side is the horizontal distance the ladder needs to cover on the ground.

The tangent of an angle is given by the formula: tan(x⁰) = opposite/adjacent.

To calculate the adjacent side, we can use the height of the ladder and the ground elevation angle: adjacent = height / tan(ground elevation).

Plugging in the values, we have: adjacent = 10 / tan(15⁰).

Solving this equation gives us the value of the adjacent side. We can then find x⁰ by taking the arctan of the ratio: x⁰ = arctan(adjacent/height).

Calculating this value, we find x⁰ ≈ 80.77⁰.

Therefore, the ladder needs to be set at an angle of approximately 80.77⁰ to reach a height of 10 feet, accounting for the ground elevation of 15⁰.

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Around a park, there is a circular walking path with a radius of 500 feet. Sandy walked 135° around the circular path.


Approximately how many feet did Sandy walk around the path? Round your answer to the nearest whole foot

Answers

Sandy walked approximately 1,179 feet around the circular path. to calculate this, we can find the circumference of the circle by using the formula C = 2πr, where r is the radius.

In this case, the radius is 500 feet. So, the circumference is approximately 2π(500) = 3,141.59 feet. Since Sandy walked 135° around the path, we can find the fraction of the circle she covered by dividing 135° by 360°. The fraction is approximately 0.375. Multiplying this fraction by the circumference gives us 0.375 * 3,141.59 ≈ 1,178.96 feet, which rounds to 1,179 feet.

Sure! To calculate the approximate distance Sandy walked around the circular path, we first need to find the circumference of the circle. The formula for the circumference of a circle is C = 2πr, where r is the radius. In this case, the radius is given as 500 feet.

Substituting the value of the radius into the formula, we have C = 2π(500) = 1000π. However, it's more convenient to work with an approximate value of π, which is approximately 3.14159. Therefore, the circumference of the circle is approximately 1000 * 3.14159 = 3141.59 feet.

Now, we know that Sandy walked 135° around the circular path. To determine the distance she covered, we need to find the fraction of the circle that corresponds to this angle. Since a complete circle is 360°, the fraction of the circle she covered is 135° / 360° = 0.375.

To find the distance Sandy walked, we multiply this fraction by the circumference of the circle. Therefore, 0.375 * 3141.59 = 1178.96 feet. Rounding this value to the nearest whole foot, Sandy walked approximately 1179 feet around the circular path.

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What is the explicit formula for the sequence below?4, – 12, 36, – 108,...A.tn=(−3)n−1B.tn=4(−3)n−1C.tn=4(3)n−1D.tn=4(−3)n

Answers

The explicit formula for the given sequence 4, -12, 36, -108,... is D. tn = 4(-3)n. Option D

In the given sequence, each term is obtained by multiplying the previous term by -3. This indicates an exponential decay pattern with a common ratio of -3.

To derive the explicit formula, we start with the initial term 4 and observe that each subsequent term can be obtained by multiplying the previous term by -3:

Term 1: 4

Term 2: -3 × 4 = -12

Term 3: -3 ×(-12) = 36

Term 4: -3 × 36 = -108

We can generalize this pattern by using the formula tn = ar^(n-1), where tn represents the nth term, a is the initial term, and r is the common ratio. In this case, a = 4 and r = -3. Thus, the explicit formula for the sequence is tn = 4(-3)n which matches option D.

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Franklin is purchasing replacement equipment for outdoor recess. Mr. DiCanio


put in a order totaling $97. 23 to purchase 4 playground balls for $17. 25 each, a


package of 10 jump ropes for $18. 75, and 1 Nerf football. How much did the Nerf


football cost?

Answers

As Franklin is purchasing replacement, the Nerf football cost an amount of $9.48.

How much did the Nerf football cost?

To get the cost of the Nerf football, we will subtract the cost of the playground balls and the package of jump ropes from the total order cost.

The cost of 4 playground balls is:

= 4 * $17.25

= $69.00

The cost of package of 10 jump ropes = $18.75

So, the total cost of playground balls and jump ropes will be:

= $69.00 + $18.75

= $87.75

Cost of Nerf football = Total order cost - Total cost of playground balls and jump ropes

Cost of Nerf football = $97.23 - $87.75

Cost of Nerf football = $9.48

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Una caja contiene lápices azules y rojos. ¿Cómo se interpreta que la razón entre los lápices azules y los rojos en la caja sea 3:1? A. Hay tres lapices rojos y 1 azul B. Hay tres lapices azules y 1 rojo C. Hay el triple de lapices rojos que de lapices azules D. Hay el triple de lapices azules que de lapices rojos AYUDA PLISSSSSS

Answers

La opción que interpreta correctamente la razón entre los lápices azules y rojos en la caja de 3:1 es la opción B: "Hay tres lápices azules y 1 rojo".

Cuando se dice que la razón entre los lápices azules y los rojos en la caja es de 3:1, significa que por cada grupo de tres lápices azules, hay un lápiz rojo.
La opción A indica que hay tres lápices rojos y 1 azul, lo cual es incorrecto ya que la razón especifica que hay más lápices azules que rojos. La opción C sugiere que hay el triple de lápices rojos que de lápices azules, lo cual también es incorrecto según la razón proporcionada. La opción D indica que hay el triple de lápices azules que de lápices rojos, lo cual es contrario a la razón establecida de 3:1.
Por lo tanto, la opción que interpreta correctamente la razón 3:1 es la opción B: "Hay tres lápices azules y 1 rojo".

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Which estimate at a 95% confidence level most likely comes from a small sample?
A. 93% (±24%)
B. 82% (±8%)
C. 78% (±4%)
D. 87% (±6%)

Answers

The estimate at a 95% confidence level that most likely comes from a small sample is 93% (±24%). The correct option is A

What is margin of error ?

The range of values that is most likely to include the true population parameter is known as the margin of error. The standard error, a gauge of the sample statistic's variability, is used to determine the margin of error.

Option A in this situation has the most margin of error of the four, at 24%. In comparison to the other options, this indicates that the true population parameter is probably within 24% of the sample statistic. This implies that option A's sample size is smaller than that of the other options.

Therefore, the estimate at a 95% confidence level that most likely comes from a small sample is 93% (±24%).

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