For 0 less-than x less-than StartFraction pi Over 2 EndFraction, which expression is equivalent to StartStartFraction sine (StartFraction x over 2 EndFraction) tangent (StartFraction x Over 2 EndFraction) OverOver 1 minus cosine (x) EndEndFraction?

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

An isosceles trapezoid was broken into a rectangle and two triangles. what are the base and height of one of the triangles?