Using the ratio of perfect squares method, what is square root of 89 rounded to the nearest hundredth? use the ratio of perfect squares method.

Describe all the numbers that when rounded to the nearest thousand are 645,000

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Line u passes through points (-52, -18) and (-29, 53). line v passes through points (90, 33) and (19, 56). are line u and line v parallel or perpendicular?