Determine whether or not the given pair of values is a solution of the given system.x = -2, y = 3x + y = 5x - y = -1
A. Yes
B. No
Answer: B
Mathematics
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Solve the problem.The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 2 sec when the length is 16 inches, what is the period when L = 4 inches?
A. 3 sec B. 1 sec C. 2.5 sec D. 2.75 sec
Mathematics
2 3/4 + 4 7/8 =
a. 7 5/8 b. 6 5/8 c. 7 1/4 d. 5 3/4 e. 2 1/2
Mathematics
Find the missing number, if possible. There may be more than one number that works, so find as many as possible. If no number works, write "No number possible."10 ? 
+ 2 = 102
A. -10, 10 B. -94, 94 C. 90 D. 10
Mathematics
For the complex fraction, determine the LCD of all the fractions appearing within the expression.
A. x(x + 5) B. x(x - 72) C. x + 5 D. x
Mathematics