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alekssr [168]
3 years ago
7

PLEASE HELP The volume of a cylinder is 72 7 cm. If the radius is 3 cm, what is the height of the cylinder? 3 cm O A. 4 cm B. 24

cm O C. 8 cm OD. 12 cm?​
Mathematics
1 answer:
Vikentia [17]3 years ago
6 0

Answer:

maybe 24

Step-by-step explanation:

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Joshua finished the mile race in 22.7 minutes. Blake finished the race 8 3/10 minutes sooner than Joshua finished it. How many m
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31 mins

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22.7+8 3/10=31 mins

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On Saturday morning, Josh spends 3/4
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75 mins / 1 hour 15 mins

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3 years ago
What should the following equation be multiplied by in order to eliminate the fractions? x over 2 + x over 3 = 25 over 3
Kobotan [32]

D.6

Step-by-step explanation:

try multiplying everything by one of the numbers

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8 0
3 years ago
Helppppppp<br> 3<br> Σ (2n – 3)<br> n=0
Nataly [62]

Since there are only 4 terms in the sum, it's not too much work to expand it as

\displaystyle \sum_{n=0}^3 (2n-3) = -3 + (-1) + 1 + 3 = \boxed{0}

Alternatively, we can use the well-known formulas

\displaystyle \sum_{n=1}^N 1 = \underbrace{1 + 1 + \cdots + 1}_{N \text{ 1s}} = N

\displaystyle \sum_{n=1}^N n = 1+2+\cdots+N = \frac{N(N+1)}2

These sums start at n = 0, so in our given sum we will keep track of the 0-th term separately:

\displaystyle \sum_{n=0}^3 (2n-3) = -3 + \sum_{n=1}^3 (2n-3) = -3 + 2 \sum_{n=1}^3 n - 3 \sum_{n=1}^3 1 = -3 + 3\times4 - 3\times3 = 0

as expected.

8 0
2 years ago
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