Solve the equation on the interval [0, 2?).sin 2x + sin x = 0
A. 
, 
, 
, 
B. 0, 
, ?, 
C. 
, 
D. no solution
Answer: B
Mathematics
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Find the indicated angle or side. Give an exact answer.Find the exact length of side a.
A. 
B. 1
C. 
D. 
Mathematics
Solve the problem. Write your answer as a mixed number when possible.A biology experiment required pouring 
gallon of nutrient solution and 
gallon of pure water into a tank. At the end of the experiment, 
gallon of fluid had evaporated. How much fluid remained in the tank?
A. 
gallon(s)
B. 
gallon(s)
C. 2
gallons(s)
D. 
gallon(s)
Mathematics
Solve the equation.log (2 + x) - log (x - 2) = log 3
A. {4}
B. {-4}
C. 
D. ?
Mathematics
Write the inequality in interval notation.x > -7
A. [-7, ?) B. (-?, -7) C. (-7, ?) D. (-?, -7]
Mathematics