From 1990 to 2010, the numbers (in millions) of female F and male M
employees from the ages of 16 to 19 in the United States can be modeled by F(t)=−0.007t2+0.10t+3.7
and M(t)=0.0001t3−0.009t2+0.11t+3.7
, where t
is the number of years since 1990.
a. Find (F+M)(t)
.

(F+M)(t)=

Question 2

Suppose you are going to graph the data in the table. minutes temperature (°c) 0 -2 1 1 2 3 3 4 4 5 5 -4 6 2 7 -3 what data should be represented on each axis, and what should the axis increments be? x-axis: minutes in increments of 1; y-axis: temperature in increments of 5 x-axis: temperature in increments of 5; y-axis: minutes in increments of 1 x-axis: minutes in increments of 1; y-axis: temperature in increments of 1 x-axis: temperature in increments of 1; y-axis: minutes in increments of 5

What is the value of f(x) = 2.2 for f(-2)?

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?