Find the sum: (-10x^3 + 4x + 5) + (5x^2 - 2x)

O A. 10x^2 - 5x^2 + 2x
O B. -5x^2 + 5x^2 + 5
O C. -10x^3 + 5x + 5
D. -10x^3 + 5x^2 + 2x + 5

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25