Tiana's math test score are 85 and 91 . she has one more test left. in order to earn and a, her average test score must be at least 94. let x represent tiana's score on her next test. which inequalities could represent the possible test scores she can earn on the next test in order to earn an a? select all that apply
a) 94< 85+91/2< 100
b) 94< 176+x/2< 100
c) 94< 85+91+x/3< 100
d) 94< 176/3< 100
e) 94< =176+x/3< 100

What are the sotions to the quadratic equation 9x^2=4

What percent of the circle below is shaded?

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)