Answer:
<h2>C = 70π cm</h2><h2>A = 2,450 cm²</h2>Step-by-step explanation:
The perimeter of the given figure is equal to the circumference of whole circle.
The formula of a circumference of a circle:
d - diameter
We have d = 70 cm. Substitute:
The area of given figure is equal to the area of rectangle 70cm × 35cm.
(look at the picture).
The area of a rectangle:
Answer:
$104.19
Step-by-step explanation:
We will use the compound interest formula to solve this:
<em>P = initial balance</em>
<em>r = interest rate (decimal)</em>
<em>n = number of times compounded annually</em>
<em>t = time</em>
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First, lets change 5% into a decimal:
5% -> -> 0.05
Now, plug the values into the equation:
After 3 years, Maria will have $104.19