Which describes the combined variation in the formula V = xr^2h?
V varies directly with a, h, and r2.
V varies jointly with h and 2.
V varies inversely with h and 12.
V varies inversely with a, h, and r2.

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4