Find the expression.u = 
, v = 
Find 7u + 7v
A. 
B. 
C. 
D. 
Answer: D
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Provide an appropriate response.If a body of mass m falling from rest under the action of gravity encounters an air resistance proportional to four times the square root of velocity, then the body's velocity t seconds into the fall satisfies the equation: m
= mg - 4kv2where k is a constant that depends on the body's aerodynamic properties and the density of the air.Determine the equilibrium, velocity curve, and the terminal velocity for a 170 lb skydiver (mg = 170) with k = 0.005.
A. Equilibrium: v = 
vterminal = 92.20 ft/sec
B. Equilibrium: v = 
vterminal = 92.20 ft/sec
C. Equilibrium: v = 
vterminal = 92.20 ft/sec
D. Equilibrium: v = 
vterminal = 92.20 ft/sec
Evaluate the expression for the given replacement values.yx, for x = 3 and y = 7
A. 4 B. 343 C. 10 D. 21
Provide an appropriate response.Consider an equation of inverse variation y = 
. When x increases, does y increase or decrease?
Fill in the blank(s) with the appropriate word(s).
Solve the problem.Accent Woodworkers knows that their marginal cost of producing x feet of custom molding is given by C'(x) = -0.00003x2 - 0.05x + 90, for x ? 1000,where C'(x) is in cents. Approximate their total cost, in dollars, of manufacturing 1000 feet of molding, using 5 subintervals over 
and the left endpoint of each subinterval.
A. $1028.00 B. $699.88 C. $314.00 D. $628.00