Which of the following statements is true? a. all similar figures are also congruent figures b. all congruent figures are also similar figures. c. it is not possible for figures to be both similar and congruent. d. figures that are congruent cannot also be similar.

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585