Use the first five terms of the trigonometric series to approximate the value of cos 4pi/7 to four decimal places. Then compare the approximation to the actual value. a. –0.9609, –0.9659
b. –0.2224, –0.2225
c. –0.9649, –0.9659
d. –0.9568, –0.9659

Which statements are true of the graph of h(x) = ^3 square root of x-4 ? check all that apply.the domain of h(x) is the set of all real numbers. the range of h(x) is the set of all real numbers. for all points (x, h( h(x) exists if and only if x – 4 0. the graph of h(x) is a translation of f(x) down 4 units. the graph of h(x) intercepts the x-axis at (4, 0).

1. what is the measure of ∠abc? what is the measure of ∠abd?

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