Prove whether the following are identities sin 3x = 4 cos3 x − 3 cos x

Which of the following equations is of the parabola whose vertex is at (2, 3), axis of symmetry parallel to the y-axis and p = 4? a.)y-3 = 1/16 (x-2)^2 b.)y+3 = -1/16 (x+2)^2 c.)x-2 = 1/16 (y-3)^2

The pyramid shown has a square base that is 24 centimeters on each side. the slant height is 16 centimeters. what is the lateral surface area?

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9