Add the numbers using the number line.-99 + 92 
A. -7
B. 7
C. -191
D. 191
Answer: A
Mathematics
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Find the acceleration of an object for which the displacement s (in m) is given as a function of the time t (in s) for the given value of t.s = 
, t = 2 s
A. - 
ft/s2
B. 
ft/s2
C. - 
ft/s2
D. 
ft/s2
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Find the unknown length in the right triangle. 
A. c = 40 km B. c = 19 km C. c = 20 km D. c = 14 km
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Find the perimeter of the polygon.
A. 151 m B. 83 m C. 1020 m D. 166 m
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Graph the function over a one-period interval.y = cos 
+ 
A. 
B. 
C. 
D. 
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