Graph the function on the indicated interval.y = sin (?x) - 3 cos (2x), 0 ? x ? 6.5 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Multiply.
? -6
A. 
B. 
C. 18
D. 9
Mathematics
Solve the problem.A tank contains 100 gal of fresh water. A solution containing 2 lb/gal of soluble lawn fertilizer runs into the tank at the rate of 1 gal/min, and the mixture is pumped out of the tank at the rate of 
Find the maximum amount of fertilizer in the tank and the time required to reach the maximum.
A. 50 pounds, 50 minutes B. 60 pounds, 40 minutes C. 48 pounds, 40 minutes D. 48 pounds, 60 minutes
Mathematics
Rewrite each number using scientific notation before performing the operation. Leave your answer in scientific notation form.3 × 10-35 + 5 × 10-34
A. 5.3 × 10-35 B. 5.3 × 10-33 C. 5.3 × 10-34 D. 8.0 × 10-34
Mathematics
Decide whether the figure is convex or not convex.
A. Not convex B. Convex
Mathematics