Subtract.(8x2 + 9x4 + 5 + 8x3) - (3 - 5x3 + 4x4 + 4x2)
A. 5x4 + 3x3 + 12x2 + 8
B. 13x4 + 3x3 + 12x2 + 2
C. 13x4 + 3x3 + 12x2 + 8
D. 5x4 + 13x3 + 4x2 + 2
Answer: D
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Find the inverse of the given function.y = 4 log e x
A. y =
B. y = ex/4
C. y = 4 e x
D. y = -4 log e x
Rationalize the denominator of the expression.
?
What will be an ideal response?
Solve the problem.A landscaping company sells 40-pound bags of top soil. The actual weight x of a bag, however, may differ from the advertised weight by as much as 0.75 pound. Write an inequality involving absolute value that expresses the relationship between the actual weight x of a bag and 40 pounds. Over what range may the weight of a 40-pound bag of to soil vary?
A. |x - 40| ? 0.75; {x|39.25 ? x ? 40.75} B. |x - 40| ? 0.75; {x|x ? 39.25 or x ? 40.75} C. |x - 40| < 0.75; {x|39.25 < x < 40.75} D. |x - 40| ? 0.75; {x|39.25 ? x ? 40.75}
Use the figure to solve the inequality.f(x) < 0
A. {x|-5 ? x ? 2}; [-5, 2] B. {x|x < -5 or x > 2}; (-?, -5) or (2, ?) C. {x|-5 < x < 2}; (-5, 2) D. {x|x ? -5 or x ? 2}; (-?, -5] or [2, ?)