Choose as many answers as apply.
in the introduction, the situations that should require the use of a calculator are:
a.) ordinary arithmetic
b.) statistical calculations
c.) finding a square root
d.) multiplying a multi-digit number by itself several times (finding the power of a number)

step-by-step explanation:

mean or average is 40.6

step-by-step explanation:

no solution.

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.

0lz try yourself sorry for not answering