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

Mathematics

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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.

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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) = 
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D. l(x) = 

Mathematics