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2 years ago

A circular mirror has a circumference of 30 pi inches. What is the area of mirror?

Mathematics

1 answer:

Aleonysh [2.5K]2 years ago

6 0

Answer:

Step-by-step explanation:

circumference = 2πr

2πr = 30π inches

$r=\frac{30\pi}{2\pi}=15in$

Area = πr² = π*15*15 = 225π square inches

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melomori [17]

Answer:

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Step-by-step explanation:

Given data

borrowed = $2100

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rate = 2.6%

to find out

interest and receive from the bank and actual rate of interest

solution

we know bank discounted the loan at 2.6%

so interest will be 2.6% of $2100

that is = 2.6/100 × 2100

interest = $54.60

so receive from the bank is borrowed money - interest

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here interest of 12 months = 12/15 × interest of 15 month

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now we can calculate actual rate of interest

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Akimi4 [234]

Answer:

Step-by-step explanation:

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