Find dy/dx by implicit differentiation.x3 + 3x2y + y3 = 8
A. - 
B. 
C. 
D. - 
Answer: D
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Translate the question into an equation. Do not solve.Find 10% of 40% of 9400.
A. n = 10% × 40% × 9400 B. 9400 = 10% × 40% × n C. 9400 = 10 × 40 × n D. n = 10 × 40 × 9400
Approximate the area under the curve and above the x-axis using n rectangles. Let the height of each rectangle be given by the value of the function at the right side of the rectangle.f(x) = 2x3 - 1 from x = 1 to x = 6; n = 5
A. 825 B. 800 C. 875 D. 850
Solve the problem.The cost for labor associated with fixing a washing machine is computed as follows: There is a fixed charge of $25 for the repairman to come to the house, to which a charge of $20 per hour is added. Find an equation that can be used to determine the labor cost, C, of a repair that takes x hours. Write the final answer in the form C = mx + b.
A. C = 45x B. C = -20x + 25 C. C = 25x + 20 D. C = 20x + 25
Work the chain multiplication.70 ? 21 ? 3
A. 4410 B. 4310 C. 4400 D. 4510