Find the derivative.y = 10 - 5x2
A. 10 - 5x
B. 10 - 10x
C. -10x
D. -10
Answer: C
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Assuming that the equations define x and y implicitly as differentiable functions 
find the slope of the curve 
at the given value of t.x cos t + x = 2t, y = t sin t + t, t = 
A. 2
B. 
C. 2 + ?
D. 
Solve the problem.A private shipping company will accept a box for domestic shipment only if the sum of its length and girth (distance around) does not exceed 102 in. What dimensions will give a box with a square end the largest possible volume?
A. 34 in. × 34 in. × 34 in. B. 17 in. × 17 in. × 85 in. C. 17 in. × 17 in. × 34 in. D. 17 in. × 34 in. × 34 in.
Solve the rational equation.
+ 
= 
A. {1} B. {-4, 1} C. {4, 1} D. {-4, -1}
Solve the problem.How much commission will an agent make on the sale of a $215,100 house if she receives 
of the selling price?
A. $2366.10 B. $236.61 C. $19,554.55 D. $1955.45