Find the indicated maximum or minimum values by the linear programming method. The constraints are shown below the objective function.Minimum C:C = 9x + 3yy ? 1x + y ? 10x + 2y ? 105x + y ? 10
A. 
B. 
C. 84
D. 30
Answer: A
Mathematics
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The vector r(t) is the position vector of a particle at time t. Find the angle between the velocity and the acceleration vectors at time t = 0.r(t) = sin-1(3t)i + ln(5t2 + 1)j + 
k
A. 
B. 0
C. 
D. 
Mathematics
Find the volume of the indicated region.The region enclosed by the cone 
between the planes 
and 
A. 
?
B. 248?
C. 248
D. 
Mathematics
Find (f ?g)(x) for the given functions f(x) and g(x).f(x) = 7x + 5 and g(x) = x2 - 2
A. 49x2 + 14x - 5 B. 7x2 - 9 C. x2 + 7x + 3 D. x2 - 7x - 7
Mathematics
Graph the function.f(x) = 3ln x 
A. 
B. 
C. 
D. 
Mathematics