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lisov135 [29]
3 years ago
12

If you know the diameter of a circle, which statement describes how to find the AREA?

Mathematics
2 answers:
pentagon [3]3 years ago
6 0

Answer:

c

Step-by-step explanation:

PI times radius squared

Agata [3.3K]3 years ago
4 0

Answer: d

Step-by-step explanation: The formula for area of a cicle is a=pi(r^2). I like to remember circumference and area by the sentence cherry pies are delicious, apple pies are too. (c[herry]=pi*d, a[pple]=pi(r^2)

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Suppose you invested $10,000 part at 6% annual interest and the rest at 9% annual interest. If you received $684 in interest aft
victus00 [196]
Assuming simple interest (i.e. no compounding within first year), then
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At 9% interest = 10000*0.09 = $900

Two ways to find the ratio
method A. let x=proportion at 6%
then
600x+900(1-x)=684
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method B: by proportions
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= 900-684 : 684-600
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= 18 : 7
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