Which statement best describes how to determine whether f(x) = x3 + 5x + 1 is an even function? Determine whether –(x3 + 5x + 1) is equivalent to x3 + 5x + 1. Determine whether (–x)3 + 5(–x) + 1 is equivalent to x3 + 5x + 1. Determine whether –x3 + 5x + 1 is equivalent to –(x3 + 5x + 1). Determine whether (–x)3 + 5(–x) + 1 is equivalent to –(x3 + 5x + 1).

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?