The shortest distance from a point to a straight line is
a. the perpendicular from the line to the point.
b. a vertical line through the point.
c. the perpendicular bisector of the line.
d. a parallel through the point to the line.

If 90° < θ < 180° and cotθ = -1/3, then cscθ =

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?

Mr. zimmerman invested $25,000 in an account that draws 1.4 interest, compouneded annually. what is the total value of the account after 15 years