Evaluate the trigonometric function of the given quadrantal angle. If the value is undefined, write "undefined."tan 1440°
A. -1
B. 0
C. undefined
D. 1
Answer: B
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Which of the following illustrations best represents a bar graph?
A.
B.
C.
D.
E.
Using the factoring method, solve for the roots of the quadratic equation.45x2 + 65x = 0
A. x = 0
B. x = 
, x = - 
C. x = 
, x = 0
D. x = - 
, x = 0
Decide whether the statement is true or false. If it is false, tell why.The equation -x2 = -9 has no real solutions.
A. True B. False; the equation is equivalent to x2 = 9 and has two real solutions, 3 and -3. C. False; the equation has one real number solution, 3.
Use Bayes' rule to find the indicated probability.Two shipments of components were received by a factory and stored in two separate bins. Shipment I has 2% of its contents defective, while shipment II has 5% of its contents defective. If it is equally likely an employee will go to either bin and select a component randomly, what is the probability that a defective component came from shipment II?
A. 0.714 B. 0.222 C. 0.5 D. 0.2