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leonid [27]
4 years ago
9

How exactly would I have to check my work for -x^2 = -36? The answer is 6 right?

Mathematics
1 answer:
Agata [3.3K]4 years ago
3 0
To check your work, plug in 6 and see if it works. It does!

But, -6 also works. If you plug it in, it also works.

Hope this helps!
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Calculate the surface area of this cylinder. Round final answer to tenths.
astra-53 [7]

Answer:

36ft

Step-by-step explanation:

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3 years ago
in a marathon race (42.195 km), the winner’s time is 2 hours, 13 minutes, and 9 seconds, while the second-place time is 2 hours,
algol [13]

in a marathon race (42.195 km), the winner’s time is 2 hours, 13 minutes, and 9 seconds, while the second-place time is 2 hours, 26 minutes, and 6 seconds . The distance is 2.664 km.

D = distance of marathon = 42.195 km = 42195 m

tw = time taken by winner = 2 h 17 min = 2 (60) + 17 = 137 min = 137 (60) = 8220 sec

Vw = speed of winner

speed of winner is given as

Vw = D /tw = 42195/8220

ts = time taken by second place = 2 h 26 min 14 sec = 2 (60)(60) + (26)(60) + 14 = 8774 s

Vs = speed of second place

speed of second place is given as

Vs = D /ts = 42195/8774

distance of the second place holder from the finish line is given as

D' = Vs (ts - tw)

D' = (42195/8774 )(8774 - 8220)

D' = 2664.24 m

D'= 2.664 km

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7 0
2 years ago
What is the opposite of 3 over 4
Hoochie [10]

Answer:

Step-by-step explanation:

Explanation: There is nothing known as opposite in algebra. If you mean additive inverse it is 34 and if you mean multiplicative inverse or reciprocal it is −43 . multiplicative inverse, also called reciprocal, is the number which when multiplied with the number results in 1 , the multiplicative identity element.

6 0
3 years ago
Read 2 more answers
What type of number is √25? Whole number , integer , rational or irrational . SELECT ALL THAT APPLY
Arlecino [84]

Answer:

A, B, and C.

Step-by-step explanation:

The square root of 25 is 5. 5 is rational, a whole number, and an integer.

8 0
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zhenek [66]

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Step-by-step explanation:

-2(-x+4) - 1

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-1

4 0
3 years ago
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