Solve and check.
- x = 6
A. -3
B. No solution
C. -7, -3
D. -7
Answer: A
Mathematics
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Find the largest open interval where the function is changing as requested.Increasing f(x) = 
A. (1, ?) B. (-?, 0) C. (0, ?) D. (-?, 1)
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Find the probability.The chart below gives the number of vehicle tags sold in each city. 
One car is selected at random from the cars with vehicle tags from these cities. What is the probability that this car is from Salem? Round to the nearest ten-thousandth.
A. 0.1593 B. 0.1374 C. 0.1553 D. 0.2119
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Find the root.
A. 9 B. 3 C. -3 D. Not a real number
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Graph the function.y = -tan (x + ?)
A. 
B. 
C. 
D. 
Mathematics