Find dy/dx by implicit differentiation.3y2 - 7x2 = 5
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.A pizza restaurant advertises 286 different 3-topping pizzas. How many individual toppings does the restaurant use? Assume that no topping is used more than once on a pizza and that the order of the toppings on the pizza is unimportant.
A. 14 B. 11 C. 7 D. 13
Solve the problem.Find the normal to the curve x2 + y2 = 2x + 2y that is parallel to the line 
A. y = x + 2 B. y = -x + 2 C. y = x - 2 D. y = -x - 2
Determine all solutions of the equation in radians.Find cos 
, given that sec x = 4 and x terminates in 0 < x < 
.
A. 
B. 
C. 
D. 
Solve the problem.A weight hangs from a rope 20 feet long. It swings through an angle of 27° each second. How far does the weight travel each second? Round to the nearest 0.1 foot.
A. 8.7 feet B. 9.4 feet C. 9.0 feet D. 8.1 feet