If 0 y, find y = cos-1(-1) Express the answer in radians y = 2pi k
y = pi
y = 2 pi

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7