Multiply the binomials.(3x2 + 4)(5x - 7)
A. 15x2 + 20x - 28
B. 15x3 - 21x2 - 20x - 28
C. 15x3 - 21x2 + 20x - 28
D. 15x3 - 28
Answer: C
Mathematics
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Verify that each equation is an identity.
= 
What will be an ideal response?
Mathematics
Find the domain and the range of the function.
A. D: x < 10 or x > 10, R: y < 0 or y > 0
B. D: x <
, R: y ? 0
C. D: x ? 10, R: y ? 0
D. D: All real numbers, R: y ? 0
Mathematics
For the compound inequality, decide whether intersection or union should be used. Then give the solution set in both interval and graph forms.x ? -6 or x > 6
A. Intersection; ?
B. Union; (-?, ?)
C. Union; (-?, -6] ? (6, ?)
D. Union; [-6, 6)
Mathematics
Solve the formula for the specified variable.Solve: D = 
(mx - mb) for m
A. m = 
B. m = 
C. m = 
D. m = 
Mathematics