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SSSSS [86.1K]
3 years ago
14

I am struggling with circles and pi. Please provide me with the answer and how you found the solution. Thank you! (#8, 9, and 10

).

Mathematics
1 answer:
tiny-mole [99]3 years ago
5 0

Answer:

Step-by-step explanation:

Area of a circle is π times radius squared so

8) π times 11^2

121π

9) cut 60 in half to find radius so

π times 30^2

900π

10)  π times 1.5^2

2.25π

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Complete question is;

Suppose that a dimension x and the area A = 2x² of a shape are differentiable functions of t. Write an equation that relates dA/dt to dx/dt.

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y = x + 13<span>
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