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Snowcat [4.5K]
1 year ago
11

5. Which is closest in value to √42? A 5.5 (B) 6 C) 6.5 D 7 How do I solve this

Mathematics
2 answers:
xxTIMURxx [149]1 year ago
7 0

Step-by-step explanation:

first of all, you could use a calculator and see and compare.

but let's look at this logically :

what fully squared numbers are closest to 42 ?

there is 36 (6²) below, and 49 (7²) above.

so, the solution must be between 6 and 7.

now is 6, 6.5 or 7 closest to the real solution ?

the difference of 6² or 36 to 42 is 6, and the difference of 7² or 49 to 42 is 7.

42 is more or less in the middle.

that means that also the square root will be relatively close to the middle between 6 and 7.

so, 6.5 is the answer.

igomit [66]1 year ago
3 0

The closest number to √42 is the option C, 6.5

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Ok... after much confusion, I've come to the conclusion that you must have written the question wrong and it's actually the perimeter that is 90 feet so that's how I'm going to work it...

Width = w
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