What number must be added to 40,00056 to result in a sum of 38,773 Hugo

answer: its the third option.

step-by-step explanation:

i just took the test.

1

x = 1

step-by-step explanation:

0 ÷ x = 0

0 ÷ 1 = 0

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.