Question

Please help i so t understand
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Answer 1

Exact Form: 2 sqr root 2 -3 Decimal Form: -0.171578287

Explanation:

Hope this helps!!! :)

Answer 2

Explanation:

a=2

b=-4

lxl=absolute values

absoulte values are the distance away from 0.

In this case the absolute value of -4, is 4.

Plug in the values:

(sqrt 2^3-7)+l-4l

(sqrt8-7) +4

(sqrt1)+4

1+4

5