Rationalize the numerator. Assume that variables represent positive values.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the vertex of the parabola.y = x2 + 6x
A. (3, 9) B. (-3, -9) C. (-3, 9) D. (-3, 0)
Mathematics
Use polar coordinates to find the limit of the function as (x, y) approaches (0, 0).f(x, y) = cos-1
A. 1
B. ?
C. 
D. No limit
Mathematics
Identify the requested component of the given statement. There may be more than one answer.Equation:t - 7 = 10
A. t - 7 B. t C. t - 7 = 10 D. t - 7, 10
Mathematics
Solve the compound inequality and graph the solution set on a number line. Except for the empty set, express the solution set in interval notation.10 < 5x ? 30
A. (-?, 2] ? (6, ?)
B. (-?, 2) ? [6, ?)
C. [2, 6)
D. (2, 6]
Mathematics