7.7 Employ the following methods to find the maximum of f (x) = 4x − 1.8x2 + 1.2x3 − 0.3x4 (a) Golden-section search (xl = – 2, xu = 4, εs = 1%). (b) Parabolic interpolation (x1 = 1.75, x2 = 2, x3 = 2.5, iterations = 5).

Draw out the fraction then show how you would subtract 5 1/4

What is the length of the unknown leg in the right triangle ?

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?