A simple random sample of size n is obtained from a population with and . (a) Describe the sampling distribution of . (b) What is ? (c) What is ? (d) What is ?

What is the perimeter of square abcd? units units 28 units 37 units

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0