A 14-foot tree casts an 18-foot shadow. Find the angle of elevation from the tip of the shadow to the top of the tree. Round the answer to the nearest tenth.

If f (x) = - 2x+9, then find the value of the x value that makes F (x) = - 22

Find the remainder of (x4 - 2) : (x + 1)

What is the area of an rectangle with sides lengths of 5/12 foot and 2/3 foot

Find the exact value of csc (-1020) °.

Myles can ride his bike 24 miles in 6 hours. how many miles can he travel in 1hour?

Ethan has $150. He wants to buy 4 identical bouquets of flowers but he needs to have at least $20 left after buying the flowers.

A librarian has weekend off and has 10 paid vacation days per year

A country's population in 1990 was 132 million. In 1998 it was 137 million. Estimate the population in 2003 using the exponential growth formula. Round your answer to the nearest million.

Simplify 7x + 2y - 3x - 5y

The staircase has treads that are 10 inches deep with 7 inch high risers. If the staircase needs to reach a total height of 8 feet, 2 inches. How much floor space needs to be allowed for the staircase?