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DaniilM [7]
3 years ago
7

Help plz answer this

Mathematics
2 answers:
bulgar [2K]3 years ago
6 0

Answer:

First choice: 58 seconds.

Step-by-step explanation:

27.8 is approximately 28 seconds, because 8 ≥ 5, so the number rounds up.

30.12 is approximately 30 seconds, since 1 < 5.

So, 28 + 30 is 58. Therefore, 27.8 + 30.12 ≈ 58.

klemol [59]3 years ago
5 0

Just round them then add together

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The answer to this is B
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2^(2×(n+3))=2^(3×14)
2^(2n+6)=2^42
2^2n=2^36
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3^(2n+1)=9^17/3^3
3^(2n+1)=3^(2×16)/3^3
3^(2n+1)=3^29
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7^(n^2)=7^49
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I)what?
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3 years ago
An airplane is 32,000 feet above the ground begins descending at a rate 2,500
grandymaker [24]

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Step-by-step explanation:

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Step-by-step explanation:

Since x = -1, we can replace the x with -1 to get: -3 - 4 which is -7.

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