Simplify. Write the answer with positive exponents.
A. 
B. x12
C. x11
D. 
Answer: D
Mathematics
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Find v ? u.v = 7i - 4j and u = -9
i + 9j
A. -36
+ 63
B. (7 - 9
)i + 5j
C. -36
i - 63j
D. -36 - 63
Mathematics
Refer to the double-bar graph below which shows the number of male and female athletes at a university over a four-year period. Solve the problem.
What was the amount of the decrease in the number of female athletes from 2004 to 2005?
A. 50 B. 75 C. 100 D. 200
Mathematics
Simplify the expression. Write the result using positive exponents only.
A. 
B. 
C. 
D. 
Mathematics
Factor the polynomial completely. If the polynomial is prime, so state.8x2 - 69x + 40
A. (5 - 8x)(8x - 5) B. (8x + 35)(8x - 5) C. (x + 8)(8x - 5) D. (x - 8)(8x - 5)
Mathematics