A model railroad engine is 2 inches long. If the scale is 168 feet to 1 foot, how long is the real engine?
A. 31
B. 29
C. 26
D. 34
E. 28
Answer: E
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Write the standard form of the equation of the circle with radius r and center (h, k).r = 
; (h, k) = (0, 8)
A. (x - 8)2 + y2 = 121 B. (x + 8)2 + y2 = 121 C. x2 + (y - 8)2 = 11 D. x2 + (y + 8)2 = 11
Solve the equation by making an appropriate substitution.x-2 + 12x-1 + 34 = 0
A. 
B. 
C. 
D. 
Read the poem in the News Clip.
a. If a right-handed mitten is turned inside out, as is suggested in the poem, will it still fit a right hand?b. Is a right-handed mitten topologically equivalent to a left-handed mitten?
A. a. no, b. yes B. a. no, b. no C. a. yes, b. no D. a. yes, b. yes
Graph the function, showing all asymptotes (those that do not correspond to an axis) as dashed lines. List the x- and y-intercepts.f(x) = 
A. No x-intercepts, y-intercept: (0, 4) ;
B. No x-intercepts, y-intercept: (0, -4) ;
C. x-intercepts: (-4, 0) and (1, 0) ,
y-intercept: (0, -4) ;
D. No x-intercepts, y-intercept: (0, -4) ;