Find the exact value of the trigonometric function. Do not use a calculator or tables.sec 
A. 
B. 
C. 
D. 
Answer: B
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Write the continued fraction in the form 
reduced to lowest terms.1 + 
A. 
B. 
C. 
D. 
Factor.x(x + 6) - 5(x + 6)
A. (x + 5)(x - 6) B. (x - 5)(x - 6) C. (x - 5)(x + 6) D. (x + 5)(x + 6)
Convert the constraints into linear equations by using slack variables.Maximize z = 2x1 + 8x2Subject to: x1 + 6x2 ? 15 7x1 + 5x2 ? 25 x1 ? 0, x2 ? 0
A. x1 + 6x2 = s1 + 15 7x1 + 5x2 = s2 + 25 B. x1 + 6x2 + s1 ? 15 7x1 + 5x2 + s2 ? 25 C. x1 + 6x2 + s1 = 15 7x1 + 5x2 + s2 = 25 D. x1 + 6x2 + s1 ? 15 7x1 + 5x2 + s2 ? 25
Solve the problem.If a, b, and c are all nonzero, then determine if the plane ax + by + cz = 1 always intersects all three coordinate planes (i.e. the planes x = 0, y = 0, z = 0), sometimes intersects them, or never intersects them.
A. Never B. Always C. Sometimes