Assuming that the distance between the points
In Problems 2–8, solve each equation or inequality.
Write all possible rational zeros of
Show that
The horsepower required to propel a ship varies as the cube of the ship’s speed. If the horsepower required for a speed of 15 miles per hour is 10,125, find the horsepower required for a speed of 20 miles per hour.
A city covers an area of 400 square miles. At present, only 2% of its area is reserved for parks. In the unincorporated area outside the city limits, 20% of the area could be developed into parks. How many square miles of the incorporated area had to be annexed so that the city could develop 12% of its area as parks?
In Problems 13 and 14, solve the system of equations.
Use transformations to sketch the graph of
Find the inverse of the matrix
Use the result in Exercise 16 to solve the system of equations.
Assuming that
Let
In Exercise 19, find the domain and range of f.