Write 23 - 21 in polar form with between 0 and 2n. find z, 72 8. for z = 4 (cos 120° + i sin 120°) z= 2 (cos 30° + i sin 30") 9. find

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp