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Snowcat [4.5K]
2 years 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]2 years 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]2 years ago
3 0

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

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