Use substitution to factor the trinomial.x4 - 7x2 + 12
A. (x2 + 3)(x2 - 4)
B. (x2 + 3)(x2 + 1)
C. (x + 3)(x - 4)
D. (x2 - 3)(x2 - 4)
Answer: D
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Substitute the given values into the formula and then evaluate to find the unknown quantity. Label units in your answer. If the answer is not exact, round your answer to the nearest hundredth.d = rt; t = 9, d = 54
A. 0.2 B. 6 C. 45 D. 63
Give all solutions of the nonlinear system of equations, including those with nonreal complex components. 2x2 + xy + 2y2 = 23x2 - 5xy + 3y2 = 3
A. {(1, 0), (-1, 0)} B. {(1, 0), (-1, 0), (0, 1), (0, -1)} C. {(1, 0), (0, 1)} D. {(1, 0)}
Write the expression in the standard form a + bi.
A. 5 + 3i B. 3 + 5i C. 5 - 3i D. 3 - 5i
In the figure shown, AC ? CE, BD ? BE and AE ? DE . If ?AED = 105°, find the measures of ?AEC and ?CAB.
