Simplify the expression. Assume that all variables are positive.
A. 
B. xy5
C. 
D. 
Answer: A
Mathematics
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Find dy/dt.y = (1 + sin 8t)-6
A. -48(1 + sin 8t)-7 cos 8t B. -48(cos 8t)-7 C. -6(1 + sin 8t)-7 cos 8t D. -6(1 + sin 8t)-7
Mathematics
Solve the problem.Fireworks are launched into the air. The quadratic function 
models the fireworks' height, y, in feet, x seconds after they are launched. When should the fireworks explode so that they go off at the greatest height? What is that height? (Round answers the nearest hundredth.)
A. -6.22 sec, 612.77 ft B. 6.22 sec, 624.77 ft C. 6 sec, 199 ft D. 1104 sec, 6 ft
Mathematics
Convert as indicated.72.81 m to kilometers
A. 0.7281 km B. 72,810 km C. 7281 km D. 0.07281 km
Mathematics
Find the corner points for the set of feasible solutions for the constraints.
?
What will be an ideal response?
Mathematics