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kari74 [83]
2 years ago
5

Find the area and the circumference of a circle with radius 3 cm.

Mathematics
1 answer:
pshichka [43]2 years ago
6 0

1. Observe problem

Solve for the area and Circumference of a circle who's radius is 3 cm

Area for circle formula:

pi*r^2=

9pi

I simplicity is needed, 9 pi is around

28.2743338823cm^2

Circumference for circle formula: 2*pi*r

which is

6pi

if simplicity is again needed, its around

18.8495559215cm

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Answer:

12 mph and 16 mph

Step-by-step explanation:

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56 = s * 2 + (s - 4) * 2

56 = 2s + 2s - 8

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5 0
2 years ago
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1,985 + 12,000 + what ? = 14,471 .
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Answer:

486

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3 years ago
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What is the sum?
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4 × 6 = 24

3(3x + 4)
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3 × 4 = 12

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So your answer is B) 13x + 36. I hope this helps!
4 0
3 years ago
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Jeans ($48) Sweater ($42) Tennis Shoes ($69) T-Shirt ($21) Blouse ($52) Heather is shopping for back-to-school clothes. The item
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You can use rounding to figure this problem out. If the number in the ones place is 0 to 4, round down to the nearest tens place; if the number in the ones place in 5 to 9, round up to the nearest tens place.

48 rounds to 50.
42 rounds to 40.
69 rounds to 70.
21 rounds to 20.
52 rounds to 50.

Now use mental math to estimate the cost (50 + 40 + 70 + 20 + 50). Heather will spend about $230.

Answer:
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8 0
3 years ago
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Please help me, A candle is in the shape of a frustum (a cone with the top cut off). Calculate the volume of the candle to the n
MariettaO [177]

Answer:

Height = 8 cm

You will need this formula (see attached):

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Volume = 234.57 cubic centimeters

Source: http://www.1728.org/volcone.htm

Step-by-step explanation:

3 0
2 years ago
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