Write an equation to describe the variation. Use k for the constant of proportionality.s varies directly as x
A. s = 
B. x = ks
C. x = 
D. s = kx
Answer: D
Mathematics
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Approximate the coordinates of the points.
?
A. ?A: (4, 2), B: (-6, -6), C: (5, 2), D: (6, -5) B. ?A: (1, 2), B: (-6, -6), C: (5, 2), D: (6, -5) C. ??A: (2, 2), B: (-6, -6), C: (5, 2), D: (6, -5) D. ??A: (3, 2), B: (-6, -6), C: (5, 2), D: (6, -5) E. ???A: (-1, 2), B: (-6, -6), C: (5, 2), D: (6, -5)
Mathematics
Sketch D and g(D) from the description of D and change of variables 
x = u + v, y = 2u - v where D is the rectangle 0 ? u ? 1, -1 ? v ? 1
?
A.
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B.
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C.
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D.
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Mathematics
Insert parentheses where needed so that the expression evaluates to the given number.4 ? 7 - 3 ? 5; evaluates to -32
A. (4 ? 7) - (3 ? 5) B. (4 ? 7 - 3) ? 5 C. 4 ? (7 - 3) ? 5 D. 4 ? (7 - 3 ? 5)
Mathematics
Find the exact value of the expression.
A. - 
B. 
C. 
D. -
Mathematics