Determine whether the equation defines y as a function of x. y2 = 5 - x2
A. function
B. not a function
Answer: B
Mathematics
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Solve the equation by completing the square.(x - 7)(x - 1) = 10
A. {-4 - 
, -4 + 
}
B. {4 - 
, 4 + 
}
C. {4 - 
, 4 + 
}
D. {-4 - 
, -4 + 
}
Mathematics
Solve the problem.Tom and Larry are food inspectors at a cookie making company. Tom tests every 8th batch of dough for fat percentage. Larry tests every 28th batch of dough for carbohydrate percentage. If they both start working at the same time, which batch will be the first that they both test?
A. The 14th batch B. The 56th batch C. The 112th batch D. The 28th batch
Mathematics
Solve the inequality and graph. Express your answer in interval notation.24x + 8 > 4(5x + 7)
A. [5, ?)
B. (-?, 5]
C. (-?, 5)
D. (5, ?)
Mathematics
Evaluate.19 - (-19)
A. 38 B. -38 C. 0 D. 19
Mathematics