Calvin is using the formula A=3r ^2 to estimate the area of a circle. Solve the formula for r.

Which triangles area would be calculated using the trigonometric area formula

Which graph represents the parent function of y=(x+2)(x-2)

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm