If the area of a circle is 144pi square meters, what is the area of the sector for 80 degrees of the circle, rounded to the nearest hundredth?

In a 45-45-90 right triangle, what is the ratio of the length of one leg to the length of the other leg? а . 1: 2 в. 2: 1 с. 2: 1 d. 1: 1

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.