Simplify. Be sure to rationalize all denominators. Assume that all variables represent positive real numbers.
A.
B.
C.
D. 2
Answer: C
Mathematics
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Factor the expression completely. : 30x² - 11x - 30
(a) (9x + 7)(5x - 6) (b) (9x - 7)(7x + 9) (c) (9x + 7)(7x - 9) (d) (6x + 5)(5x - 6) (e) (6x + 5)(7x - 9)
Mathematics
Use the graph of the polynomial to solve the indicated inequality.P(x) ? 0
A. (-?, -6] ? [-4, -1] B. (-?, -4] C. [-1, ?) D. [-6, -4] ? [-1, ?)
Mathematics
Use a graphing calculator to solve the linear equation.-9x + 2 + 7x = -2x + 7
A. ? B. {-2} C. all real numbers D. {5}
Mathematics
Solve the problem.A company determines that its marginal revenue (in dollars per day) is given by M The company's marginal cost (in dollars per day) is given by
Find the total profit from
to
(the first 6 days).
A. $19,416 B. $19,394 C. $19,409 D. $19,459
Mathematics