Emily gets paid to recruit people to join an email list at work. If she signs up 5 friends and they all sign up 5 more friends, the function y = 5x represents the number of people on the email list after so many cycles. Select all the key features that apply to y = 5x. The domain is all real numbers. The relevant domain is all nonnegative integers. The domain and relevant domain are both {x ≥ 0}. The range is all real numbers. The y-intercept is 1. The y-intercept is 5. As x increases, y increases; and, as x decreases, y approaches 0.

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 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)

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

Which equation represents h for right triangle abc