Determine whether the positive or negative sign makes the equation correct.sin 140° = ±
A. Positive sign
B. Negative sign
Answer: A
Mathematics
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Solve the problem.The orbit of a satellite had a semimajor axis of a = 8872 km. Calculate the period of the satellite. 
and 
A. 78.2 min B. 1.98 hr C. 12 hr D. 138.6 min
Mathematics
Find the probability of the event if a single choice is made from a bag.A bag contains 7 red marbles, 6 blue marbles, 5 yellow marbles, and 3 green marbles. What is the probability of choosing a yellow or green marble when one marble is drawn?
A. 
B. 
C. 
D. 
Mathematics
The function graphed is of the form y = a tan bx or y = a cot bx, where b > 0. Determine the equation of the graph.
A. y = 2 tanx B. y = tan 2x C. y = 2 cot x D. y = -cot 2x
Mathematics
Translate the graph to an inequality using the variable x.
A. x ? -3 B. x ? -3 C. x > -3 D. x < -3
Mathematics