X+5=11 what is it?

The length of the Earth's equator is about 40,000 km, and the Earth's diameter is 8/25 the length of the equator. What is the diameter of the Earth?

Find the roots of the quadratic equation x2 _ 8x = 9 by completing the square. Show your work.

What is the simplest form of expression? 2a^2b^2/4a

Bill went to the movies with some of his friends. tickets cost $8.50 each. they spent $18.00 total for food. their total was $52.00. how many friends went to movies, including bill?

What is (f⋅g) (x) ? f (x) = x^2+2x-6 g (x) = x^4+3 Enter your answer in the box.

recently 5/8 of the items sold at Debbies Sporting Good were baseball caps. at Sasha Sports 7/10 of the items sold were baseball caps which store sold a greater fraction of baseball caps?

You want to find the height of a tower used to transmit cellular phone calls. You stand 100 feet away from the tower and mesure the angle of elevation to be 40°. How high is the tower to the nearest foot

A helicopter leaves central airport and flies north at 180 mi/hr. Twenty minutes later a plane leaves the airport and follows the helicopter at 330mi/hr. How long does it take the plane to overtake the helicopter

A rectangular piece of paper with length 29 cm and width 12cm has two semicircles cut out of it. Find the area of the paper that remains.

Kent earns $49,000 a year and has to pay $45 in taxes for every $1,000. How much taxes does he pay in one year? A. $2,049 B. $2,000 C. $2 205 D. $1,000