Perform the indicated operations. Write answers using only positive exponents. Assume variables represent positive real numbers.7a3/4 ? 7a-23/4
A. 
B. 
C. 
D. 7a-20
Answer: C
Mathematics
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Multiply.
A. 2,048,356 B. 2,047,256 C. 2,058,256 D. 2,048,256
Mathematics
Express the interval in set builder notation and graph the interval on a number line.(-?, 4.5)
A. {
x ? 4.5}
B. {
x ? 4.5}
C. {
x > 4.5}
D. {
x < 4.5}
Mathematics
x? = 3x ? 3y, y? = 3x ? y
Solve the first-order linear system.
Mathematics
Express in terms of i.
A. ±12
B. -12i
C. 12i
D. -i
Mathematics