Solve the formula for the specified variable.P = 2L + 2W
for L
A. L = 
B. L = P - 2W
C. L = P - W
D. L = 
Answer: D
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Parametrize the surface S.S is the cap cut from the paraboloid z = 
- 3x2 - 3y2 by the cone z = 
.
What will be an ideal response?
Rationalize the numerator of each fraction.
A. 
B. 
C. 
D. 
Solve the problem.Any offset between a stationary radar gun and a moving target creates a "cosine effect" that reduces the radar mileage reading by the cosine of the angle between the gun and the vehicle. That is, the radar speed reading is the product of the actual reading and the cosine of the angle. Find the radar reading to the nearest hundredth for the auto shown in the figure. 
A. 30.82 mph B. 80.29 mph C. 86.93 mph D. 85.07 mph
Evaluate the algebraic expression for the indicated variable.-2x2 + 2y2 for x = 3, y = -3
A. -36 B. -24 C. 12 D. 0