(-0.3) ÷ (-0.2)+(-2.56)

in whole numbers with steps

-1 to the nearest whole number.

Step-by-step explanation:

(-0.3) ÷ (-0.2)+(-2.56)

Order of operations - the division is done first:

= 1.5 = (-2.56)

= 1.5 - 2.56

= -1.06.

When the ball hit the ground, the height of the ball will be zero. So using the value of h(x) as zero in the given equation, we can find the time in which the ball will hit the ground.

0 = -(x-2)^2 + 16

(x-2)^2 = 16

x-2 = 16

x-2 = 4

x = 6

This means the ball will hit the ground 6 seconds after Amir threw it.