Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real numbers.
A. 
B. 45y(y + 4)
C. 
D. 
Answer: C
Mathematics
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Simplify the rational expression. If the rational expression cannot be simplified, so state.
A. 
B. cannot be simplified
C. 
D. 
Mathematics
Divide.8 ÷ 3
A. 2.6
B. 2.66
C. 2.
D. 2.
Mathematics
Solve the problem.If (a, 3) is a point on the graph of y = 2x - 5, what is a?
A. 1 B. -4 C. -1 D. 4
Mathematics
Write the complex number in polar form. Express the argument in degrees, rounded to the nearest tenth, if necessary.
- i
A. 4(cos 330° + i sin 330°) B. 2(cos 300° + i sin 300°) C. 2(cos 330° + i sin 330°) D. 4(cos 300° + i sin 300°)
Mathematics