A stone is thrown upward from the surface of the planet Mars with an initial velocity of 16m/s. Given that the acceleration due to gravity on Mars is 3.72 m/s^2, find the velocity and height of the stone after t seconds.

Bob paid $3 less than tim at a local pizza parlor. together they spent $7.80. how much did bob pay for pizza?

Which of these figures must be a rectangle?

Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.