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ZanzabumX [31]
3 years ago
7

What is the exact area of a circle with a diameter of 18 feet?

Mathematics
1 answer:
Kitty [74]3 years ago
7 0
The formula for the area of a circle is 

\pi  r^{2}

We know the diameter, and the radius is half of the diameter.  So the radius is 9.  Now we plug that into the formula.

\pi  9^{2} =81 \pi

So the answer is B, 81 pi square feet
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Answer:

Step-by-step explanation:

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Range: [-3, ∞)

When x<4, the graph is decreasing.

When x>4, the graph is increasing.

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Answer:

If cost of one box of card is $7.50 then the no of cards produced is 6667 cards and if cost of one box of card is $10.50 then the no of cards produced is 4762 cards

Step-by-step explanation:

The cost of one box of cards = $7.50

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5 0
3 years ago
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in Hanley's school, 0.723 of the students participated in an event. if there are 1000 students in Hanley School, how many partic
Ugo [173]
Answer:

723 students participated in the event

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2 years ago
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