Find the domain of f (x) = x-9/x squared-81

Which of the following are square roots of the number below? check all that apply 81 a. 18 b. - (81) ^1/2 c. 9 d. 81^1/2

What are some limitations in using a line of best fit drawn on a scatter plot to make predictions? a. There may be too much information given on the scatter plot. b. The line may represent a negative or positive correlation. c.

Solve for b. b + 3 (3 - 2b) = 1 - 2 (b + 1)

Consider the function represented by the equation x - y = 3. What is the equation written in function notation, with x as the independent variable? f (x) = y + 3 f (x) = - y - 3 f (x) = - x + 3 f (x) = x - 3

The sum of (2x^3 - 3x^2 + 4) and which polynomial results in the polynomial (5x^3 + 4x^2 - 1) ? A. (-3x^3 - 7x^2 + 3) B. (3x^3 + x^2 - 3) C. (3x^3 + 7x^2 - 5) D. (7x^3 - x^2 + 3) E. (10x^3 - 12x^2 - 4)

A right triangle has legs that are 19 in. and 23 in. What is the area of the triangle

What equation results from completing the square and then factoring x2+4x=12

In two years the value of a car chnaged from 14,000 to 11,200 what is the percent of change

What is the difference 4 1/3 - (-2/3)

Elaine is painting a fence. she knows that she needs 1 gallon of paint for each 10 feet of fencing. The fencing will enclose a rectangular yard that is 3 yards long and 2 yards wide. how much paint does Elaine need?