Population growth in the U. S. between 1800 and 1850, in millions, can be represented by the function f, defined by f(t)=5 * e^(0.028t)
a. what was the U. S. population in 1800?
b. graph the equations y= f(t) and y=20.
c. what is the point of intersection of the two graphs, and what does it mean in this situation?

Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w

What is the area of the shaded sector?

The diameter of a bacteria colony that doubles every hour is represented by the graph below. what is the diameter of the bacteria after 8 hours? graph of a curve passing through the points zero comma 1, one comma two, two comma four, and three comma eight