Scores on the mathematics part of the scholastic aptitude test (SAT) in a recent year were approximately normal with a mean of 476 and standard deviation of 96. What percent of students scored between 400 and 600? Round your answer to the nearest tenth.

The parking lot of a store has the shape shown. all angles are right angles. what is the area of the parking lot?

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota