Factor the binomial completely.16y2 -(x + 5)2
A. (4y + 5x)(4y - 5x)
B. (4y + x + 5)(4y - x + 5)
C. (4y - x - 5)2
D. (4y + x + 5)(4y - x - 5)
Answer: D
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Set up the general equation from the given statement.The safe load on a beam ? with a rectangular cross section that is supported at each end varies jointly as the product of the width W and the square of the depth D and inversely as the length L of the beam between the supports.
A. 
B. 
C. 
D. 
Solve the problem.The following graph shows types of paint sold at a local hardware store and the percent of sales for each type of paint. 
If the hardware store sold 1000 cans of paint, how many more cans of flat interior were sold than gloss interior?
A. 200 B. 50 C. 5 D. 250
Use a graphing calculator to plot the data and find the quadratic function of best fit.The number of housing starts in one beachside community remained fairly level until 1992 and then began to increase. The following data shows the number of housing starts since 1992 (x = 1). Use a graphing calculator to plot a scatter diagram. What is the quadratic function of best fit?
A. H(x) = -3.268x2 + 30.494x - 168.982 B. H(x) = 3.268x2 + 30.494x + 168.982 C. H(x) = -3.268x2 + 30.494x + 168.982 D. H(x) = -3.268x2 - 30.494x + 168.982
Solve the formula for the indicated letter. Assume that all variables represent nonnegative numbers.aS2 + bS = c, for S
A. S = 
B. S = 
C. S = 
D. S = 