Find 
.y = (sin x)cos x
A. (sin x)cos x(cos x cot x - sin x ln (sin x))
B. cos x ln ( sin x)
C. cos x cot x - ln (sin x)
D. cos x cot x - sin x ln(sin x)
Answer: A
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Solve.2y - 6y = 13 - 5
A. 2 B. 30 C. -2 D. 8
If a man jumps from an airplane with no parachute, his velocity after t seconds is given by 
feet per second. How long will it take for his velocity to reach 106.67 feet per second?
?
A. 7 seconds B. 5 seconds C. 0.83 second D. 175.17 seconds
Solve the problem.Decide whether or not the points are the vertices of a right triangle.(1, 3), (7, 5), (6, 0)
A. No B. Yes
Refer to the following recipe to first estimate the answer and then use multiplication or division to find the exact answer. Simplify. Old Grandma's Fork Cookies 1
cups brown sugar 1
cups white sugar 1
cups shortening 1 pinch salt 3 eggs 2
tsp soda 2
/> tsp cream of tartar 1
tsp vanillaCream sugars and shortening. Beat in remaining ingredients. Add flour to stiffen like regular cookie dough. Roll into balls, then flatten with a fork. Cook until brown.If the recipe is tripled, how much soda will be needed?
A. Estimate: 9 tsp
Exact: 7
tsp
B. Estimate: 9 tbsp
Exact: 7
tbsp
C. Estimate: 6 tsp
Exact: 6
tsp
D. Estimate: 7
tsp
Exact: 9 tsp