Using tables of squares cube roots and reciprocals, solve:
2 over the cube root of 21.36

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.