Determine whether the equation defines y as a function of x.x + y = 49
A. y is a function of x
B. y is not a function of x
Answer: A
Mathematics
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Solve the system of equations by Gaussian elimination. If there is an unlimited number of solutions, find two of them.6x + 9y = 9-2x - 4y = -4-8x + 9y = 9
A. x = -1, y = 2 B. Inconsistent C. x = 0, y = 1 D. Unlimited: x = -1, y = 2; x = 0, y = 1
Mathematics
Provide an appropriate response.Perform the indicated operation, rationalize the denominator, and simplify if possible: 
Fill in the blank(s) with the appropriate word(s).
Mathematics
Express the following in interval notation.
A. [1, ?) B. (1, ?) C. (-?, 1] D. (-?, 1)
Mathematics
Solve the problem.The half-life of Cesium 134m is 3.0 hours. If the formula 
gives the percent (as a decimal) remaining after time t (in hours), sketch P versus t.
A. 
B. 
C. 
D. 
Mathematics