Given that arccos (x) = b.
what are all the angle measures for right triangle abc?
a = 20°, b = 70°, 90°
a = 60°, b = 30°, 90°
a = 450, b = 45°, 90°
a = 55°, b = 35°, 90°

The graph of the quadratic function shown on the left is y = –0.7(x + 3)(x – 4). the roots, or zeros, of the function are . determine the solutions to the related equation 0 = –0.7(x + 3)(x – 4). the solutions to the equation are x =

Which graph represents the equation y =4x

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor