Suppose you earned a score of 474 on a test. For which of the following conditions would your score indicate the best performance relative to the rest of
the class?
mean = 406, standard deviation = 53
mean = 435, standard deviation = 47
mean = 435, standard deviation = 41
mean = 474, standard deviation = 41

mean = 450, standard deviation = 43

What statement is true? 2x^2-9x+2=-1

Point r divides in the ratio 1 : 3. if the x-coordinate of r is -1 and the x-coordinate of p is -3, what is the x-coordinate of q? a. b. 3 c. 5 d. 6 e. -9

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)