**Answer:**

a = 4 b = 1 c = 9

**Step-by-step explanation:**

is 5/2 irrational or rational

5/2 is a rational because this can be expressed as a ratio or fraction. 5/2 in ratio can be written as 2.5

The difference of a number and 8 is no more then 13

x - 8 = </= 13

x could be from 9 to 21

A college statistics class at a nearby university has 1,000 students enrolled in it. On a recent exam, the mean score was 75% with a standard deviation of 5%. Use the calculator to show what percentage of students scored between a 73 and 78 (C grade).

**Answer:**

38.11%

**Step-by-step explanation:**

Given that:

Mean (μ) = 75, standard deviation (σ) = 5

Z score is a measure in statistics to determine the variation of a raw score from the mean. It is given by the equation:

[tex]z=\frac{x-\mu}{\sigma}[/tex]

To calculate the percentage of students scored between a 73 and 78 (C grade), we need to find the z score for 73 and then for 78.

For x = 73, the z score is:

[tex]z=\frac{x-\mu}{\sigma}=\frac{73-75}{5} =-0.4[/tex]

For x = 78, the z score is:

[tex]z=\frac{x-\mu}{\sigma}=\frac{78-75}{5} =0.6[/tex]

From the probability distribution table:

P(73 < x < 78) = P(-0.4 < z < 0.6) = P(z < 0.6) - P(z < -0.4) = 0.7257 - 0.3446 = 0.3811 = 38.11%

Elliott has some yarn that she wants to use to make hats and scarves. Each hat uses 0.2, point, 2 kilograms of yarn and each scarf uses 0.1, point, 1 kilograms of yarn. Elliott wants to use twice as much yarn for scarves as for hats, and she wants to make a total of 20 items. Let h be the number of hats Elliott makes and s be the number of scarves she makes. Which system of equations represents this situation?

Answer:

Step-by-step explanation:

Let h be the number of hats Elliott makes and s be the number of scarves she makes.

Each hat uses 0.2 kilograms of yarn and each scarf uses 0.1 kilograms of yarn. Elliott wants to use twice as much yarn for scarves as for hats. This is expressed as

h = 2s

The total number of hats and scarves that she wants to make is 20. This is expressed as

h + s = 20

Therefore, the system of equations that represents this situation are

h = 2s

h + s = 20

**Answer: The answer is letter C**

**Step-by-step explanation:**

16.8=2.4e

find the value of E

Divide both sides by 2.4

e=7

e=7

**Answer:**

[tex]e = 7[/tex]

**Step-by-step explanation:**

[tex]16.8 = 2.4e \\ \frac{16.8}{2.4} = \frac{2.4e}{2.4} \\ \: \: \: \: \: 7 = e[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

4688-3) -30X-5 CX-5)

**Answer:**

x = 13/3

**Step-by-step explanation:**

4(8x-3) - 30x = 5(x-5)

Distribute

32x - 12 - 30x = 5x -25

Combine like terms

2x -12 = 5x-25

Subtract 2x from each side

2x-12-2x = 5x-2x -25

-12 = 3x-25

Add 25 to each side

-12+25 = 3x-25+25

13 = 3x

Divide each side by 3

13/3 = x

**Answer:**

x ≈ 4.3

**Step-by-step explanation:**

*Distribute the 4 to (8x - 3) and the 5 to (x - 5), like so:*

4(8x - 3) - 30x = 5(x - 5)

32x - 12 - 30x = 5x - 25

*Add like terms (32x and -30x), like so:*

32x - 30x = 2x

2x - 12 = 5x - 25

*Subtract 2x from both sides:*

2x - 12 = 5x - 25

-2x -2x

____________

-12 = 3x - 25

*Add 25 to both sides:*

-12 = 3x - 25

+ 25 + 25

____________

13 = 3x

*Divide both sides by 3:*

4.3 ≈ x

Find the value ox x. (Circles)

**Answer:**

x = 140 degrees

**Step-by-step explanation:**

Lets say that the other part of the circle we don't know is y. Because the chords are equal distance, that means that the amount of circle the cut off is equal so y also equals 100.

And y + x + 100 + 20 = 360

100 + x + 100 + 20 =360

x + 220 = 360 Subtract 220 from both sides.

x = 140

The partial pressure of carbon dioxide in a mixture is 0.31 atm.

If the mole fraction of the carbon dioxide is 0.46, what is the

total pressure of the mixture?

**Answer:**

[tex] P_{Co2}= X_{Co2} P_{tot}[/tex]

Where [tex] P_{tot}[/tex] represent the total pressure and [tex]X_{Co2}[/tex] the fraction of carbon dioxide is 0.46 and we can find the total pressure with this formula:

[tex] P_{tot}= \frac{P_{Co2}}{X_{Co2}}[/tex]

And replacing we got:

[tex] P_{tot}= \frac{0.31 atm}{0.46}= 0.674 atm[/tex]

**Step-by-step explanation:**

For this case the partial presure of carbon dioxide is given by:

[tex] P_{Co2}= X_{Co2} P_{tot}[/tex]

Where [tex] P_{tot}[/tex] represent the total pressure and [tex]x_{Co2}[/tex] the fraction of carbon dioxide is 0.46 and we can find the total pressure with this formula:

[tex] P_{tot}= \frac{P_{Co2}}{X_{Co2}}[/tex]

And replacing we got:

[tex] P_{tot}= \frac{0.31 atm}{0.46}= 0.674 atm[/tex]

In the diagram below, OPis circumscribed about quadrilateral ABCD. What is

the value of x?

A. 80°

o

o

120-

B. 30°

C. 120

O O

D. 60°

SUEM MES

< PREVIOUS

Answer: The correct answer is D!!! 60

Step-by-step explanation:

Th**e measure of the value of x** from the given quadrilateral is **81 degrees.**

From the given diagram, the quadrilateral is inscribed in the circle.

USing the theorem; "the sum of **opposite angle **of a quadrilateral is 180degrees, hence;

x + 98 = 180

S**ubtract 98** from both sides

x + 98 - 98 = 180 -98

x = 180 - 98

x = 81 degrees

Hence th**e measure of the value of x** from the given quadrilateral is **81 degrees.**

**Learn more on geometry **here: https://brainly.com/question/20303542

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If you had to add two fractions with denominators of 4 and 5. What might the denominator of the sum be? Show more than one possibility. Use specific fraction examples.

**Answer:**

9

**Step-by-step explanation:**

does anyone know the answer to this please ?

**Answer:**

I think it's the first one.

Your friend buys a skateboard that is on sale for one third off the original price. Your friend spent $36 than the original price. What was the original price of the skateboard?

**Answer:**

original price of skateboard = $54

**Step-by-step explanation:**

Let the original price of the skateboard be x

selling price = one third off the original price = $36

x - (1/3x) = 36

[tex]\frac{x}{1} - \frac{x}{3} = \frac{3x-x}{3} = \frac{2x}{3}[/tex]

[tex]\frac{2x}{3} = 36\\2x = 108\\x = \frac{108}{2} = 54[/tex]

∴ x = 54

Please help me with this question

**Answer:**

Either 36.35 or 16.00173

**Step-by-step explanation:**

the reason im saying its either is due to not remembering whether do divide by inverse cosine to get on other side of equal sign or to just divide the cosine as is.

IF you are supposed to use inverse cosine:

16.00173

IF NOT:

36.35182

Evaluate 7 r − 15 s 7r− s 15 7, r, minus, start fraction, 15, divided by, s, end fraction when r = 3 r=3r, equals, 3 and s = 5 s=5s, equals, 5.

Answer: 18

Step-by-step explanation:

Evaluate 7 r − 15 /s

Given that r = 3 and s = 5

7r - 15/s

Substitute 3 for r and 5 for s in the above expression

7(3) - 15/5

= 21 - 3

= 18

Answer:

18

Step-by-step explanation:

Find the area of the shape shown below.

12

4

The answer to this question is 32

**Answer:**

32

**Step-by-step explanation:**

what is 4 3/4 - 1/3 . I need this answer so I can pass .

Answer:

Step-by-step explanation:

Turn the fractions to the same denominator then subtract to get: 4 5/12

What is the value of y?

**Answer:**

**Step-by-step explanation:**

A [tex]45^\circ - 45^\circ - 90^\circ[/tex] triangle is special -- it's a square cut in half diagonally.

The legs (sides that form the 90 degree angle) are both equal.

The hypotenuse is the leg multiplied by the square root of 2.

[tex]\text{hypotenuse}=\text{side}\sqrt{2}[/tex]

So [tex]x=24\sqrt{2} \approx 33.9[/tex]

X2+Y2−8X+6Y+21=0 Use the process of completing the square to rewrite the equation above as the equation of a circle in standard form , and identify the center and radius . The center is at the point ( , ) The radius is

**Answer:**

**Step-by-step explanation:**

hello : here is an solution

a tile pattern has 6 times as many white squares as gray squares.there are 48 white tiles in the pattern.how many gray tiles are there?

8. You would take 48 (white tiles) then divide it by 6 to get 8. (Grey tiles)

There are 8 white **squares** in the tile **pattern**.

Given that, there are 48 white tiles in the pattern.

What is an equation?In mathematics, an **equation** is a formula that expresses the **equality** of two **expressions**, by connecting them with the equals sign =.

Let the **number** of gray squares be x.

Here, a tile **pattern** has 6 times as many white squares as gray squares

Then, white squares = 6x

Now, 6x=48

⇒ x=8

Therefore, there are 8 white **squares** in the tile **pattern**.

To learn more about an **equation** visit:

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The number of gold medals won by ten countries during the 1996 Olympics are given below. Use the data to make a stem and leaf plot. (9,16,9,15,20,13,7,26,9,44)

**Answer:**

0| 7, 9,9,9

1| 3,5,6

2| 0,6

3|

4| 4

Notation: For this case the first number represent the first digit and the second represent the second digit.

**Step-by-step explanation:**

For this case we have the following dataset given:

9,16,9,15,20,13,7,26,9,44

The first step is order the data on increasing way and we got:

7,9,9,9, 13,15, 16,20,26,44

And we can create the stem plot like this:

0| 7, 9,9,9

1| 3,5,6

2| 0,6

3|

4| 4

Notation: For this case the first number represent the first digit and the second represent the second digit

c(1)=-20 c(n)=c(n-1)+10 find second term

**Answer:**

c(2) = -10

**Step-by-step explanation:**

c(1)=-20

c(n)=c(n-1)+10

Let n = 2 since n indicates the term number

c(2)=c(2-1)+10

= c(1) +10

= -20+10

= -10

Find the particular solution to y ' = 2sin(x) given the general solution is y = C - 2cos(x) and the initial condition y of pi over 2 equals 1 .

-2cos(x)

2 - 2cos(x)

1 - 2cos(x)

-2 - 2cos(x)

I think it is option C. Thank you in advance!

**Answer:**

1 − 2 cos x

**Step-by-step explanation:**

y' = 2 sin x

y = C − 2 cos x

1 = C − 2 cos(π/2)

1 = C

y = 1 − 2 cos x

Problem

A group of people attended a party.

When they danced as couples, one person was left

over.

When they danced in threes, one person was left over.

When they danced in fours, one person was left over.

When they danced in fives, one person was left over

How many people

were at the party?

**Answer:**

301

**Step-by-step explanation:**

HELPPPP PLEASE ! GET POINTS AND BRAINLIEST!

Answer:

1. segment RT

2. segment QS

3. segment PS

4. < QTR

5. arc QR

6. arc QSR

7. arc QS

These are all by definition.

Radius: distance from the center of a circle to a point on the circle

Diameter: a chord that goes through the center

Chord: any segment whose endpoints are on the circle

Central Angle: an angle at the center of the circle with endpoints on the circle

Minor Arc: arc that is less than 180 degrees

Major Arc: arc that is greater than 180 degrees

Semicircle: Arc of 180 degrees

does anybody know where i can watch baruto dub for free all episodes no downloads

**Answer:**

They have it on Hulu

**Step-by-step explanation:**

and I heard something about Naruto360.com.

**Answer:**

I watched it on Utube

**Step-by-step explanation:**

You can find the episodes free on Utube just type in the episode and you can find it in many languages

N/A

N/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A

**Answer:**

why is there an N not paired up with A at the beginning, and an A without an N at the end? oh my gosh dude pair them up theyre lonely

**Step-by-step explanation:**

Help pleaseeeeeee

find the code for section 8

need help now pleaseeeee

**Answer:**

21/25 = 84% 84% is the largest out of them all in a percentage number.

Hey can anyone pls help me out in dis I will give up 30 points and also will mark u as brainliest!!!!!!!!!!

**Answer:**

1. f

2. a

3. b

4. e

5. c

6. d

1. I figured out how to order them by using the distance formula to calculate how far each point was, from the other.

2. (1, -10) and (1, -11)

3. (1, -10) and (1, 11)

**Step-by-step explanation:**

Using Letter A, as example:

To calculate the distance between the points, you use the formula:

[tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

[tex]d = \sqrt{(2-2)^2+(10-4)^2}[/tex]

[tex]d = \sqrt{0 + 36}[/tex]

d = 6

Just do the same thing (plug in the numbers into the formula), and you should be able to get the correct answers.

This net consists of a square and 4 identical triangles. What is the surface area of the solid this net can form?

144 square inches

184 square inches

224 square inches

264 square inches

**Answer: C, 224 inches squared**

**Step-by-step explanation:**

When formed into a solid, the triangles are folded upwards to make a pyramid. You can find the surface area by finding the areas of the individual shapes.

There are four triangles with a height of 10 inches and a base of 8 inches.

There is one square with a side length of 8 inches.

Triangle area formula : A = (b * h) / 2

Square area formula: A = s^2

(10 * 8) / 2 = 40

8 ^ 2 = 64

There are four triangles with area of 40 and one square with area of 64.

40 + 40 + 40 + 40 + 64 = 224 inches squared. The correct answer choice is C.

The **surface area **of the pyramid is 224 in².

The **surface area** of a solid object is a measure of the **total area** that the surface of the object occupies.

Given net will form a square pyramid, so we will find the **surface area **of the **square pyramid**.

Therefore,

The **area** of the pyramid = side² + 2 × side × height

= 8² + 2 × 8 × 10

= 64 + 160

= 224

Hence the **surface area **of the pyramid is 224 in².

Learn more about **surface area **click;

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Luke is designing a scale model of a clock tower. The design of the front of the tower is shown below. What will be the area of the front face of his model? 2,500 square millimeters 10,000 square millimeters 12,500 square millimeters 15,000 square millimeters

The image of the front of the tower is missing, so i have attached it.

Answer:

Option B - 10,000 square millimeters

Step-by-step explanation:

From the image attached, we see that the dimensions of the front of the tower are;

Length; L = 200 mm

Width; w = 50 mm

Now, this front face takes the shape of a rectangle.

Area of rectangle = Length x width

Thus, plugging in the values of length and width, we will get;

Area of front face = 200 x 50

Area of front face = 10,000 square millimeters

**Answer:**

12,500 mm^2

**Step-by-step explanation:**

50 x 200 = 10,000 mm

(300 - 200 = 100) 100 x 50 x 1/2 = 2,500 mm

10,000 + 2,500 = 12,500 mm^2

Please Help!! In a discount store, 12% of the 100 cups in stock have some unnoticeable defect. What is the probability of buying 12 cups that dont have any defect? And what is the probability of getting all 12 cups having a defect?
A company sells goods to a customer who will pay the full amount in 30 days.How should the company record the sale
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