Decide whether the problem is an equation or an expression.x + y = 7
A. Expression
B. Equation
Answer: B
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Factor completely.375k3m - 81m4
A. 3m(5k + 3m2)(25k2 - 15km + 9km2) B. (15km - 9m2)(25k2 + 9m2) C. 3m(5k - 3m)(25k2 + 15km + 9m2) D. 3m(125k - 3m)(k2 + 15km + 9m2)
Find the product or quotient, as indicated. Leave your answer in trigonometric form.Find the product of z1 and z2.z1 = 2[cos (-80°) + i sin (-80°)], z2 = 25(cos 200° + i sin 200°)
A. 50(cos 120° + i sin 120°) B. 50(cos 280° + i sin 280°) C. 27(cos 120° + i sin 120°) D. 50(cos -16,000° + i sin -16,000°)
Find the x- and y-intercepts of f.f(x) = (x + 1)(x - 9)(x - 1)2
A. x-intercepts: -1, 1, 9; y-intercept: 9 B. x-intercepts: -1, 1, -9; y-intercept: 9 C. x-intercepts: -1, 1, 9; y-intercept: -9 D. x-intercepts: -1, 1, -9; y-intercept: -9
Divide and round your answer to the nearest hundredth.
?
?
A. 13.88 B. 14.48 C. 13.98 D. 14.08 E. 14.98