Express the following ratio as a fraction in lowest terms.24 inches to 12 inches
A. 
B. 
C. 
D. 2
Answer: D
Mathematics
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Find d2y/dx2 without eliminating the parameter.x = 
+ 7t, y = 
- 2t, t ? -7
A. 
B. 
C. 
D. 1
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. (72)-1
A. 
B. - 
C. -14
D. -49
Mathematics
Find parametric equations to represent the line segment from (-3,4)to(12,-8).
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Mathematics
Find the constant of proportionality k, and write the linear function relating the two variables.Suppose that y is inversely proportional to x. When x = 24, then y = 
.
A. k = 72; y = 72x
B. k = 8; y = 
C. k = 8; y = 
D. k = 
; y = 
Mathematics