A student prepares for an exam by studying a list of 10 problems. She can solve 8 of them. For the exam, the instructor selects 7 questions at random from the list of 10. What is the probability that the student can solve all 7 problems on the exam

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.

The legs of a right triangle measure 6 meters and 8 meters. what is the length of the hypotonuse.

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations