An estimate for -square root 72 is?

Question

A. -8.1
B. -8.5
C. -9.1
D. -9.5
Is the answer A?
Thanks

Answer 1

I would honestly go with B more than A.

The square root of 72 is 8.4852813742385702928101323452582. The "-" sign then turns it into a negative. So, it is now -8.4852813742385702928101323452582.

Now we see what 8.4852813742385702928101323452582 is closer to for the answer. It is closer to -8.5, so -8.5 is the answer.

I hope this helps! :)

Answer 2

Thank you :)

Answer 3

You're welcome!! :)