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3 years ago

What is the area, in cm2, of the circle shown above? Round your answer to the

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

5 0

This might be wrong and I might be dumb but I got 153.86 because 7•7=49 & 49•3.14= 153.86

Drupady [299]3 years ago

4 0

Answer:

A = 97.968 cm^2 = 98.0 cm^2

Step-by-step explanation:

A = (78/360)*3.14*12^2

A = (78/360) * 3.14 * 144

A = (78/360) * 452.16

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If a = 0.6 repeating and b = 0.75, then a x b = blank and a/b = blank

atroni [7]

Answer:

a*b = 1/2

a/ b = 8/9

Step-by-step explanation:

a = 0.66666 and b = 0.75

To multiply it we write the decimal numbers in fraction form

a= 0.666666...

Multiply by 10 on both sides

10 a = 6.66666...

a = 0.66666...

Subtract the second equation

9a = 6

divide by 9 on both sides

$a=\frac{6}{9}=\frac{2}{3}$

so 0.6666 = 2/3

Now we convert 0.75 into fraction form

$0.75=\frac{0.75}{1}$

Multiply top and bottom by 100 to remove decimal

$\frac{75}{100} = \frac{3}{4}$

so 0.75 is 3/4

a= 2/3 and b = 3/4

$a*b = \frac{2}{3} * \frac{3}{4} = \frac{6}{12} = \frac{1}{2}$

$\frac{a}{b} = \frac{\frac{2}{3}}{\frac{3}{4}} = \frac{2}{3} * \frac{4}{3} =\frac{8}{9}$

8 0

3 years ago

The length of the shadow of a building is 100 meters

podryga [215]

Check the picture below.

make sure your calculator is in Degree mode.

6 0

3 years ago

Read 2 more answers

It cost $91 to rent a car for two days. What is the cost for one day?

Marina86 [1]

Answer:

$45.5

Step-by-step explanation:

Assuming that there is no tax or change in rate its simply $91 divided by two. We know that 45 is half of 91, 45.5 x 2 = 91

5 0

2 years ago

Jada purchases a sweater for $36. The store charges her 8% sales tax on the purchase. How much sales tax will the store charge o

dusya [7]

Answer:

Step-by-step explanation:

36/100=0.36 - 1%

8*0.36=2.88$

6 0

2 years ago

Help me plz i can't figure this out

zzz [600]

Answer:

Step-by-step explanation:

For C the y axis changes, add 5 to -3 and you get 2. Therefore 5 units away!

Hope this helps, good luck! :)

6 0

3 years ago