Can someone help me solve? Simplify each expression show work

Answer:

43.98 cm

Step-by-step explanation:

[tex]C=2\pi r[/tex] where r is the radius

Plug the radius 7 cm into the equation as r

[tex]C=2\pi (7)\\C=14\pi \\C=43.98[/tex]

Therefore, the circumference of the circle is approximately 43.98 cm.

I hope this helps!

Answer:

mean; the average of George's scores is the mean = 83.4

Step-by-step explanation:

The value that best describes George's scores is the mean that has a value of 83.4.

Mean is the average of a set of numbers. It is determined by adding the numbers together and dividing it by the total number. The mean makes use of all the data in the data set.

Mean = sum of the numbers / total number

(70+  92 + 70 + 90 +  95) / 5 = 83.4.

To learn more about mean, please check: https://brainly.com/question/25842202

Answer:

Discounted price= $40.28

Step-by-step explanation:

Giving the following information:

A store is running a sale where all of the items are 35% off the normal price. The price of a video game you want to buy is normally $61.97.

To calculate the discounted selling price, we need to use the following formula:

Discounted price= selling price*(1 - discount rate)

Discounted price= 61.97*(1 - 0.35)

Discounted price= $40.28

Answer:

dale is not correct

the correct angle is 30 degrees

Step-by-step explanation:

A cake is shaped like a circle

the total sum of angles in a circle is 360 degrees

If Dale and 2 friends share one fourth of a cake, the total angles they share = (1/4) X 360 = 90 degrees

If the 3 friends share the cake equally, the angles each get = (1/3) x 90 = 30 degrees

the correct angle is 30 degrees and not 45 degrees. Thus, Dale is wrong

Answer:

dale is incorrect

Answer:

42g + r - 5 =0

Step-by-step explanation:

Answer:

18 cm, 24 cm, 30 cm

Step-by-step explanation:

30² = 18² + 24²

900 = 324 + 576

900 = 900

Answer:

x=8

Step-by-step explanation:

These two equation should add up to equal 180.

8x+13+12x+7=180

20x+20=180

20x=160

x=8

Answer:

8x+13+12x+7 =180

20x+20 =180

x= 8

Answer:

I’m not sure but I. Think it’s a I guess

Step-by-step explanation:

Answer:

50.24 feet²

Step-by-step explanation:

Given that:

Diameter of circular rug = 8 feets

To obtain the area of the circular rug, we use the formula for the Area of a circle = πr²

A = πr²

r = Radius of circle = diameter / 2 = 8 /2 = 4 feets

Area of circular rug = π * 4²

Area of circular rug = 3.14 * 16 = 50.24 feet²

Answer:

The answer is F

She read it incorrectly

Step-by-step explanation:

Answer:

95.2

Step-by-step explanation:

C=pi*d

C=3.14*30

C=95.2

Answer:

95.2 :)

Step-by-step explanation:

Answer:

both are wrong

Step-by-step explanation:

raj's mistake: he did not multiply -2 by -5a/4

antonia's mistake: she went from -4a/4 to a which is wrong because -4/4 is -1.

Answer:

c

Step-by-step explanation:

add all the three numbers then divid by 3

Answer:

24 + 12 = 36

Step-by-step explanation:

find the volume of the upper left part by finding the dimensions

it already gives 2 side lengths: 2 and 2. To find the 3rd side length you can take 5 - 2 to get 3. 3*2*2 = 12

find the volume of the bottom portion by finding the dimensions. we are given 2 sides again: 2 and 2. to get the upper long side, we can do 4 + 2 to get 6. 6*2*2 = 24

24+12= 36cm^3

Page 1:

Question 8:  B. Jewelry box.  The jewelry box has the greatest volume.

Question 9:  The volume is D. 512.

Question 10:  C. is the answer.  To find the volume you multiply all the sides.  3 x 4 x 3 = 36.  Therefore C. is our answer.

Question 11:  The answer is B. 0.421 m³

Question 12:  C. 27 cm

Question 13:  C. 5.5 cm

This is just page 1.  I am working on page 2.

Page 2:

Question 14:  option A. will give her the greatest area.

Question 15:  The answer is C. 5:14

Question 16:  C. 4/5

Question 17: B. 18 in³

Question 18:  The answer is A. 2

Answer:

a) 35√2

b) between 25 and 36 (5² and 6²)

c) 49.5 ft

Answer:

x=5

Step-by-step explanation:

5-3=2

Answer:

A system of equations is a set of equations with the same variables. A system of inequalities is almost exactly the same, except you're working with inequalities instead of equations. To solve such a system, you need to find the variable values that will make each inequality true at the same time.

Step-by-step explanation:

Hope this helps. :D

Answer:

1125 calories

Step-by-step explanation:

3000 divided in 8 slices is 375 calories per piece.

3 pieces with 375 cals per 1125

Answer:

1125 calories

Step-by-step explanation:

Find how many calories are in one slice by dividing 3000 by 8:

3000/8

= 375

Find how many calories are in 3 slices by multiplying 375 by 3

375(3)

= 1125

So, in 3 slices of pizza, there are 1125 calories

Answer:

the probability of landing a 5 is unlikely

Step-by-step explanation:

Answer:

5.25 mins

Step-by-step explanation:

189/36 = 5.25.

Don't download/ clikc on any links they are hackers.

Answer:b

Step-by-step explanation:

Answer:

the answer is the top right if confused then it's the one with the fraction 2/3

Step-by-step explanation:

i got it right on i ready quiz.

Answer:

[tex]$\frac{j}{3}+5$[/tex]

Step-by-step explanation:

It is given Angela shared a cab with her 2 friends.

Total number of people = 3

Total fare = j $

Tip paid by Angela = $ 5

The total fare was equally divided by the 3 friends.

So, fare paid by angle = [tex]$\frac{j}{3}$[/tex]

Total money paid by Angela is = fare + tip

                                                   = [tex]$\frac{j}{3}+5$[/tex]

Tbe question doesn't state the number of days he walked to school out of 20 school days in the

Month of February.

Answer:

Kindly check explanation

Step-by-step explanation:

To. Obtain the fractional representayion for the number of days he walked to school ;

Let the number of days he walked to school = 10 (this is an hypothesized value)

Number of school days in February = 20

Fraction = 10 /20 = 0.5

The percentage of times walked to school : multiply the fraction obtained above by 100%

0.5 * 100% = 50%

Just put the desired value and proceed uSing the steps described above.

Answer:

x = 6

Step-by-step explanation:

From the given picture,

ΔABC and ΔADE are the similar triangles.

By the property of similar triangles,

Corresponding sides of the similar triangles are proportional.

[tex]\frac{AB}{AD}=\frac{AC}{AE}[/tex]

[tex]\frac{x+18}{x}=\frac{28}{(28-21)}[/tex]

7(x + 18) = 28x

7x + 7×18 = 28x

28x - 7x = 126

21x = 126

x = [tex]\frac{126}{21}[/tex]

x = 6