Sketch the graph of f.f(x) = 4x2
A. 
B. 
C. 
D. 
Answer: A
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Write the inequalities that describe the constraints on production.The Acme Class Ring Company designs and sells two types of rings: the VIP and the SST. The company can produce up to 84 rings each day, using up to 210 total man-hours of labor. It takes 3 man-hours to make one VIP ring and 7 man-hours to make one SST ring. Let x represent the number of VIP rings, and let y represent the number of SST rings.
A. 0 ? x ? 84, 0 ? y ? 84, 3x + 7y ? 210
B. x + y ? 84, 3x + 7y ? 210, 
, 
C. x + y ? 84, 7x + 3y ? 210, 
, 
D. 0 ? x ? 84, 0 ? y ? 84, 7x + 3y ? 210
Subtract.140 - 300
A. 160 B. -440 C. -160 D. 440
Solve each system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
A. x = 5, y = 3, z = 9 B. x = -5, y = 9, z = 10 C. x = 5, y = 9, z = 3 D. Inconsistent
Use sum-to-product formulas to rewrite the expression as a product.cos 5x + cos 3x
A. 2 cos 4x B. 2 sin 4x sin x C. 2 cos 4x sin x D. 2 cos 4x cos x