Assume that the radius r of a sphere is expanding at a rate of 40 cm/min. the volume of a sphere is
v = 4/3πr^3 and its surface area is 4πr^2. determine the rate of change in surface area when r = 10 cm.

Needmax recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

On a piece of paper graft y+2> -3x-3 then determine which answer matches the graph you drew

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x