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Alex777 [14]
2 years ago
15

A right cylinder has a radius of 5 and a height of 9. What is its surface area?​

Mathematics
1 answer:
harkovskaia [24]2 years ago
5 0

Answer:

B. 140π units²

Step-by-step explanation:

Surface area of a cylinder:

2πrh + 2πr²

2π(5)(9) + 2π(5²)

90π + 50π

140π

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4 0
2 years ago
Help me pls i don't understand the problem so can u give me the answers and also explain
WARRIOR [948]

Step-by-step explanation:

1)

\frac{2}{3} +\frac{4}{5} =\frac{10+12}{15}=\frac{22}{15} .

2) the same value of the denominator of the fractions.

3) 4²*2²=16*4=64 or 4²*2²=(4*2)²=8²=64.

Megan's answer is correct.

4) if the given length is 2,25=9/4 (feet), then the length of each piece is 9/4 :3=3/4=0.75 (feet) or 3/4*12=9 (inches).

5) a. 4-6= -2; b. -4+6=2; c. -4-6= -10, so the required order is c<a<b.

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7) if to calculate every option, then A. 2.3*6.5=14.95; B. 21.45-6.5=14.95; C. 8.32+6.63=14.95, - all of them are equal.

6 0
2 years ago
Help me with thissss​
yulyashka [42]

Answer:

C

Step-by-step explanation:

7 0
3 years ago
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dezoksy [38]

Answer:

Previously, there were 29 members in the ski club

Step-by-step explanation:

Subtract 9 from 38

6 0
3 years ago
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