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Brilliant_brown [7]
2 years ago
8

The circumference of a circle is 25 pi cm . what is the area, in square centimeters? express your answer in terms of pi .

Mathematics
1 answer:
borishaifa [10]2 years ago
8 0

The area of the circle is the amount of space it occupies, and the area of the circle is 156.25π

<h3>How to determine the area?</h3>

The circumference, C is given as:

C = 25π

Start by calculating the radius using:

C = 2πr

So, we have:

2πr = 25π

Solve for r

r = 12.5

The area is then calculated using:

A = πr²

So, we have:

A = π * 12.5²

Evaluate

A = 156.25π

Hence, the area of the circle is 156.25π

Read more about areas at:

brainly.com/question/24487155

#SPJ1

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You invested a total of $25000 at 3% and 4.5% simple interest. During one year, the two accounts earned $900. How much did you i
Sedaia [141]
A:amount of money invested in the account with 3% simple interest
B: amount of money invested in the account with 4.5% simple interest
a+b=25000 ——>a=25000-b

0.03a+0.045b=900
30a+45b=900000
2a+3b=60000

2(25000-b)+3b=60000
50000-2b+3b=60000
B=10000
A=25000-10000=15000
4 0
4 years ago
Connie Hamm demonstrates microwave ovens at a home décor center . She is paid $35.00 per demonstration for the first 10 demonstr
DochEvi [55]
Connie will make $522.20 I believe
$35.00 x 10 = $350
$45.00 x 2 = $90
$20.55 x 4 = $82.20
350+90+82.20 = $522.20
7 0
3 years ago
Can anybody help me with this?
Anika [276]

Answer:

Step-by-step explanation:

it's 12 by 10, 12 x 10 = 120. because it's a triangle, you divide 120 by 2.

120 / 2 = 60. therefore the area of the triangle is 60. I also don't know the unit im supposed to use. is it centimeters? inches? miles?

4 0
2 years ago
Will surveyed students at his school about whether they have ever gone snowboarding and whether they own a skateboard. He found
larisa [96]

Answer:

third graph

Step-by-step explanation:

We represent the above information in a two way frequency table.


                             Have Snowboarded         Never Snawboarded          Total

Skateboard                          35                                     64                          99


No Skateboard                    13                                     147                        160


Total                                     48                                     211                        259


Therefore, the third graph is the correct answer.

6 0
4 years ago
Read 2 more answers
75 = 4(2)^x
Valentin [98]

Answer:

4.229

Step-by-step explanation:

75 = 4(2)^x

75/4 = 2^x

Apply ln both sides

ln(75/4) = ln(2^x)

ln(75/4) = x ln(2)

x = ln(75/4) ÷ ln(2)

x = 4.22881869

3 0
3 years ago
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