Find the exact value of the indicated trigonometric function of ?.tan ? = - 
, ? in quadrant IIFind cos ?.
A. 
B. 
C. - 
D. - 
Answer: C
Mathematics
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Factor the trinomial, or state that the trinomial is prime.x2 - x - 40
A. prime B. (x + 5)(x - 8) C. (x - 5)(x + 8) D. (x - 40)(x + 1)
Mathematics
Solve the equation. If the equation is an identity or a contradiction, state this.13x + 5(x + 1) = 18(x + 1) - 13
A. {0} B. ? or { }; contradiction C. {1} D. all real numbers; identity
Mathematics
The graph shows a region of feasible solutions. Find the maximum or minimum values of the given expression.Find the maximum and minimum of 12x + 2y.
A. 130, 120 B. 120, 6 C. 130, 6 D. 10, 6
Mathematics
Solve the inequality and write the solution set using interval notation; then graph the solution set on a number line. (b + 7)(b + 4)(b + 2) < 0
A. (-7, -4) ? (-2, ?)
B. (-2, ?)
C. (-?, -4)
D. (-?, -7) ? (-4, -2)
Mathematics