Solve 0 = 16x² - 16x - 1 using the quadratic formula.
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Solve the problem.The magnitudes of two stars, A and B, are 3 and 25, respectively. Compare the brightness of these stars.
A. Star A is ? 1.00 × 1011 times brighter than star B. B. Star A is ? 6.31 × 108 times brighter than star B. C. Star A is ? 1.00 × 1044 times brighter than star B. D. Star B is ? 1.58 × 109 times brighter than star A.
Solve.The amount of water used to take a shower is directly proportional to the amount of time that the shower is in use. A shower lasting 17 minutes requires 10.2 gallons of water. Find the amount of water used in a shower lasting 12 minutes.
A. 6.6 gallons B. 204 gallons C. 7.8 gallons D. 7.2 gallons
Write the expression in the standard form a + bi.i13
A. -1 B. i C. -i D. 1
Use the Rational Zeros Theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x) = x4 - 9x2 - 400
A. 5; f(x) = (x - 5)2(x2 + 16) B. -5, -4, 5, 4; f(x) = (x - 5)(x + 5)(x - 4)(x + 4) C. -4, 4; f(x) = (x - 4)(x + 4)(x2 + 25) D. -5, 5; f(x) = (x - 5)(x + 5)(x2 + 16)