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natka813 [3]
3 years ago
14

Can someone help me with this? And no links or random answers please.

Mathematics
1 answer:
ivann1987 [24]3 years ago
4 0

Answer:

B, 215483cm^3

Step-by-step explanation:

volume of a cylinder equals its base area by its height;

.

its base area = r^2 x 3.14 = 15^2 x 3.14 = 706.5

.

volume = 706.5 x 305 = 215482.5 cm^3

.

approximately 215483 cm^3  

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Answer:

  B:  2⁷-1 = 127

Step-by-step explanation:

A Mersenne prime is a prime of the form 2^n -1, where n is also a prime.

Among the answer choices, neither 90=2·3²·5 nor 15=3·5 is prime. Both 2⁷-1 = 127 and 2¹¹-1 = 2047 are of the right form, but 2047 = 23·89 is a composite number.

  2⁷-1 = 127 is a Mersenne prime

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A soccer team won only 10 of their first 30 games. How many of their remaining 20 games will they have to win to have a .500 rec
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Step-by-step explanation: A .500 record means that the soccer team won half of their games ( that's how I interpret it). Since they are going to play 30 games, they need to win half of 30 or 15 games to have that record. 15-10 = 5. So, they need to win 5 more games to have a .500 record.

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On the first day in each month, Enid deposited $4 into her bank account and Jim deposited $3 into his. They opened these account
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