What is a "closing balance?"

Akiko wants to design the first section of a roller coaster track Akiko wants the ramp section to rise at 45 degrees with the horizontal. If the length of the ramp is 27 yards, find the height of the first section of the roller coaster, in yards.

What is the area of a square if one side is 40 inches long? Answer next to this = > in²

Two cars start from the same place at the same time but travel in opposite directions. One car averages 42 miles per hour and the other averages 51 miles per hour. In how many hours will they be 651 miles apart

Find the next three terms in the sequence 80 - 160 320 - 640

What's 48 minus 20 percent

Euler's formula, V - E + F = 2 relates the number of vertices V, the number of edges E, and the number of faces F of a polyhedron. How many faces does a polyhedron with 5 vertices and 8 edges have?

12. x2 - 25 = 0 solve for square roots

How many solutions does the equation have? |p - 4| = - 5

F (x) = 2/3x+3, what is the value of f (12)

A problem on a multiple-choice quiz is answered correctly with probability 0.9 if a student is prepared. an unprepared student guesses between 4 possible answers, so the probability of choosing the right answer is 1/4.