A particle starts from rest and is moving to the right along a horizontal line. If its position in time is given by s=180t -16t^2, for what value(s) of t in seconds is the particle moving to the left? Answer choices:
A: 0 ≤ t ≤ 5.625
B: t = 5.625
C: t > 5.625
D: 0 ≤ t ≤ 11.25
E: t > 11.25

Aboat's value over time is given as the function f(x) and graphed below. use a(x) = 400(b)x + 0 as the parent function. which graph shows the boat's value increasing at a rate of 25% per year?

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.