Use implicit differentiation to find dy/dx.x3 + 3x2y + y3 = 8
A. - 
B. 
C. - 
D. 
Answer: C
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Solve the problem.Tom Quig traveled 220 miles east of St. Louis. For most of the trip he averaged 60 mph, but for one period of time he was slowed to 10 mph due to a major accident. If the total time of travel was 7 hours, how many miles did he drive at the reduced speed?
A. 40 miles B. 35 miles C. 60 miles D. 50 miles
Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r = 5 
A. 
2 + y2 = 
; circle,
radius 
, center at 
in
rectangular coordinates
B. 
x2 + 
2 = 
; circle,
radius 
, center at 
in
rectangular coordinates
C. 
x2 + y2 = 25; circle, radius 5,
center at pole
D. 
x = 5; vertical line 5 units to the right
of the pole
Complete the identity.sec x - 
= ?
A. 1 + cot x B. -2 tan2 x C. sin x tan x D. sec x csc x
Solve the problem.A painter needs to cover a triangular region 63 meters by 69 meters by 73 meters. A can of paint covers 70 square meters. How many cans will be needed?
A. 327 cans B. 3 cans C. 15 cans D. 29 cans