Find the product.(3x + 1)(x + 10)
A. 3x2 + 30x + 10
B. x2 + 10x + 31
C. x2 + 31x + 30
D. 3x2 + 31x + 10
Answer: D
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Solve.Which total volume is greater, four drums containing 48, 35, 29, and 57 liters or five drums containing 30, 22, 18, 18, and 35 liters? By how much is it greater?
What will be an ideal response?
Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: all real numbers range: all real numbers intercept: (0, 9) symmetry: none B. function domain: all real numbers range: {y|y = 8 or y = 9} intercept: (0, 9) symmetry: none C. function domain: {x|x = 8 or x = 9} range: all real numbers intercept: (9, 0) symmetry: x-axis D. not a function
Show that f and g are inverses of each other by verifying that f(g(x)) = x = g(f(x)).f(x) = 
; g(x) = x2
What will be an ideal response?
Write a formula for the function described.Surveyors use the "link" as a unit of measure. Function l computes the number of links in x inches. (Hint: there are 7.92 inches in one link.)
A. l(x) = 7.92 - x
B. l(x) = 
C. l(x) = 7.92x
D. l(x) = 