Simplify the expression.
1/3
A. 3
B. 
C. 
D. 
Answer: D
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Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (-1, 1) for 5x - 
+ 6x2y2 = 0.
A. 
B. - 
C. 
D. - 
Let z vary jointly with x and y. Find the constant of variation k. Then, use 
to find z when x = 5 and y = 7.z = 4 when x = 10 and y = 2
A. k = 0.4; z = 14 B. k = 40; z = 1,400 C. k = 80; z = 2,800 D. k = 0.2; z = 7
Solve the problem.Marcus Tool and Die Company produces a specialized milling tool designed specifically for machining ceramic components. Each milling tool sells for $4, so the company's revenue in dollars for x units sold is R(x) = 4x. The company's cost in dollars to produce x tools can be modeled as C(x) = 299 + 30x5/8. Use Newton's method to find the break-even point for the company (that is, find x such that C(x) = R(x)). Use x = 370 as your initial guess and show all your work.
What will be an ideal response?
Combine like terms.6m2 + 9m2
A. 15m2 B. 16m2 C. 16m4 D. 15m4