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Deffense [45]
3 years ago
12

The area of a circle is 706.9 square inches. Find the radius

Mathematics
1 answer:
antoniya [11.8K]3 years ago
4 0

Answer:

15 inches

Step-by-step explanation:

The area of a circle is pi r^2. We basically have to work backwards. I divided it fist by 3.14 which is the value of pi. I got 225.127, but I rounded it to 225. I found the square root of this which is 15. If we check the work. 15^2 is 225, and 225 times pi is 706.9.  

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The ratio of boys to girls in a classroom is 5:6. If there are 55 students in total, how many more girls are there than boys?
KATRIN_1 [288]

Answer: there are 5 more girls than boys.

Step-by-step explanation:

The ratio of boys to girls in a classroom is 5:6. The total ratio is the sum of the proportion. It becomes 5 + 6 = 11

If there are 55 students in total, it means that the number of boys in the class is

5/11 × 55 = 25 boys

Also, the number of girls in the class is

6/11 × 55 = 30 girls

Therefore, the difference between the number of girls and boys in the class is

30 - 25 = 5 girls

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3 years ago
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Step-by-step explanation:

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Ierofanga [76]

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7 0
3 years ago
Evaluate 3^-1 times (4 times 6) times 2^-3
Sergio [31]

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1

Answer : 1

4 0
3 years ago
Read 2 more answers
Select the correct answer,
Slav-nsk [51]
Give me 8 mins i will answer in the comments
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