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3 years ago

Use the formula for the area of a circle to solve for the radius of the circle if the area is 78.5cm^2

Mathematics

1 answer:

postnew [5]3 years ago

5 0

Answer:

Area = PI * radius^2

radius = Sq Root (Area / PI)

radius = Sq Root (78.5 / PI)

radius = Sq Root (24.9873260654)

radius = 4.9987

radius = 5 (rounded)

Step-by-step explanation:

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Read 2 more answers

Can someone help me please

soldier1979 [14.2K]

Step-by-step explanation:

c >= 2

that means any value of c greater or equal to 2 is a valid solution. so, yes, 2 is a solution for this.

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2 years ago

What is the balance on a deposit of $1,150 that earns 9% interest compounded annually for 2 years

igor_vitrenko [27]

Step One: Calculate interest.

$1150*0.09=103.5$

Step Two: Calculate the amount at the end of the first year.

$1150+103.5=1253.5$

Step Three: Calculate the amount at the end of the second year. This will be your final answer.

$1253.5+103.5=1357$

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3 years ago