Simplify by writing with positive exponents. Evaluate if necessary. Assume that all variables represent nonzero real numbers.
A. 32
B. 248
C. 264
D. 5
Answer: A
Mathematics
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Solve. Round the answers as indicated.4.8x2 + 12.4x + 1.5 = 0, round to the nearest hundredth
A. 0.13 + 2.46i, 0.13 - 2.46i B. -2.46, -0.13 C. -2.46 D. 0.13, 2.46
Mathematics
State the domain of the rational function.f(x) = 
A. (-?, -3) ? (-3, 4) ? (4, ?) B. (-?, ?) C. (-?, -4) ? (-4, 3) ? (3, ?) D. (-?, - 1) ? (- 1, 1) ? (1, ?)
Mathematics
Add or subtract as indicated. Write the answer in simplest form.
+ 
A. 
B. 
C. 
D. 
Mathematics
Solve the variation problem.The number of gears a machine can make varies directly as the time it operates. If it can make 4196 gears in 19 hr, how many gears can it make in 3 hr?
A. 220.84 gears B. 0.0136 gears C. 662.53 gears D. 4218 gears
Mathematics