Solve the problem.The resistance of a wire varies directly as the length of the wire and inversely as the square of the diameter of the wire. A 20 foot length of wire with a diameter of 
has a resistance of 
What would the resistance be for a 
length, with diameter 
of the same kind of wire ?
A. 702 ohms
B. 690 ohms
C. 683 ohms
D. 687.5 ohms
Answer: B
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Give a geometric description of the set of points whose coordinates satisfy the given conditions. x2 + y2 + z2 > 25
A. All points in space B. All points outside the cylinder with radius 5 C. All points on the surface of the cylinder with radius 5 D. All points outside the sphere of radius 5
Find the root. Round to three decimal places if necessary.-
A. 16 B. 4 C. Not real number D. -4
Find the value of the objective function at each corner of the graphed region. Use this information to answer the question. 
Objective Functionz = -x - 9yWhat is the maximum value of the objective function?
A. -22 B. -38 C. -47 D. -30
Solve the problem.For what value of b is the volume of the ellipsoid 
equal to 6??
A. b = 
B. b = 
C. b = 
D. b = 