How do I solve x^2-9=0

What positive integer must be included in the set (1, 2, 4, 8) so that the new set of five integers have a median that is equal to its mean

A farmer has 1863 pounds of oats. if he divides the oats equally among 64 bags. how many pounds of oats will be in each bag? if he fill the bags with 64 pounds of oats how many bags will he be able to fill?

What is the discriminant of the quadratic equation 0=2x^2+3x-5

What is the range of f (x) = 1/7 (9) ^x

Which of the following is a solution of x^2 - 7x = - 5 A) 7 + or - the square root of 69 all over 2 B) 7 + or - the square root of 29 all over 2 C) - 7 + or - the square root of 29 all over 2 D) - 7 + or - the square root of 69 all over 2

What is the best description of the end behavior of the graph of f (x) = 12 (13) x+6? f (x) = 12 (13) x+6?

What is the measure of Z in the parallelogram shown? A. 190 B. 90 C. 150 D. 30

Add. (2x4+x3-4x2+3) + (4x4-2x3-x2+10x+2) Express the answer in standard form. Enter your answer in the box.

A rectangular park has a width of 8/9 of a mile and a length 3/5 of a mile. Find the area of the park. Write your answer in simplest form, using a complete sentence explain your answer.

A female grey whale is 2 times as long as a female killer whale. A female killer whale is 7 meters long. How long is a female grey whalevin centimeters?