Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. 
B. x15
C. 
D. x14
Answer: C
Mathematics
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Factor out the greatest common factor.t(8 - m) + s(8 - m)
A. (t - s)(8 - m) B. Prime polynomial C. (t + s)(8 - m) D. t(8 - m) + s
Mathematics
Find the exact value under the given conditions.cos ? = 
, 0 < ? < 
; sin ? = - 
, - 
< ? < 0Find tan(? + ?).
A. 
B. 
C. 
D. 
Mathematics
Solve.The polynomial 
models natural gas consumption in billions of cubic feet for a certain country during year x, where 
corresponds to 1990, 
to 1991, and so on. Approximately how much gas will be consumed in 2025?
A. 273.1 billion ft3 B. 124.1 billion ft3 C. 347.1 billion ft3 D. 50.1 billion ft3
Mathematics
Find the pivot in the tableau. 
A. 2 in row 1, column 2 B. 4 in row 2, column 2 C. 2 in row 2, column 5 D. 4 in row 1, column 5
Mathematics