Solve.If y varies directly as the square root of x, and y = 10 when x = 1, find y when x = 25.
A. 2
B. 250
C. 50
D. 
Answer: C
Mathematics
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Decide whether or not the given equation is an identity.
= 
A. Yes B. No
Mathematics
Insert parentheses as needed in the expression in order to make it equal to 0. More than one set of parentheses may be needed.8 + 4 ? 3 - 5
A. 8 + (4 ? 3) - 5 B. (8 + 4) ? 3 - 5 C. 8 + 4 ? (3 - 5) D. 8 + 4 ? 3 - 5
Mathematics
Find all numbers for which the rational expression is not defined.
A. None B. d = -2 C. d = 2 D. d = 2, 6
Mathematics
Graph the inequality.y > 3x
A. 
B. 
C. 
D. 
Mathematics