Use duality to solve the problem.Minimizew = 4y1 + 2y2subject to:3y1 + y2 ? 22 y1 + 4y2 ? 26 y1 ? 0, y2 ? 0
A. 88
B. 32.7
C. 52
D. 22.5
Answer: B
Mathematics
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Simplify the expression without a calculator.49-3/2
A. -343
B. 343
C. 
D. - 
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 5x2 - 7, x ? 0
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = - 
D. f-1(x) = 
Mathematics
Find the least squares regression line y = ax + b for the points
by solving the system of linear equations for a and b.
Points: (1, 10), (3, 8), (5, 4), (6, 5)
?
Round a, b to two decimal places.
e
A. y = -0.8x + 3.51 B. y = 11.14x- 1.17 C. y = 5.81x + 11.14 D. y = -5.19x + 3.51 E. y = -1.17x + 11.14
Mathematics
Find the product.-12x7(8x5 + 9x2 - 12)
A. -96x12 - 108x9 B. -96x5 - 108x2 + 144 C. -96x12 + 9x2 - 12 D. -96x12 - 108x9 + 144x7
Mathematics