The height of a right cylinder is 3r, where r is the radius. Write a function f in simplest form that represents the ratio of the volume to the surface area.

f (r) =

What are the dimensions of the vertical cross section of the right rectangular prism? Note that the figure is not drawn to scale. A plane passes through a right rectangular prism. The plane is parallel to the left and right faces of the prism.

Ron estimates that it will cost $400,000 to send his daughter to a private college in 18 years. He currently has $90,000 to deposit in an account.

A school is building a basketball court for its students. The length of the court is 31 1/8 feet. The width of the court is 25 1/2 feet. What is the perimeter of the basketball court?

Derive the equation of the parabola with a focus at (-7, 5) and a directrix of y = - 11. f (x) = one thirty second (x + 7) 2 - 3 f (x) = - one thirty second (x + 7) 2 - 3 f (x) = - one thirty second (x - 7) 2 - 3 f (x) =

A pencil is 66 inches long. A piece of rope is 1212 feet long. Which diagram and statement best represent their length

It takes three hours for a boat to go 18 miles downstream, and nine hours to return. What is the rate of the boat in calm water and the rate of the current?

A bag contains purple marbles and yellow marbles, 86 in total. The number of purple marbles is 2 more than 5 times the number of yellow marbles. How many purple marbles are there?

Kathleen had a bag of candy-coated chocolates. Of the 60 candies in the bag, 20% were red, 30% were orange, 30% were green, and 20% were blue. Of the blue ones, 10% had a damaged candy coating.

On a baseball diamond, 1st base, 2nd base, 3rd base, and home plate form a square. If the ball is thrown from 1st base to 2nd base and then from 2nd base to home plate, how many feet has the ball been thrown?

Lewis paid $13.55 for a beach chair and $5.75 for a book. How much did Lewis spend? $7.80 $18.20 $19.20 $19.30