Simplify the expression. Write the answer using only positive exponents. Assume that all variables represent positive real numbers.(mn-11)(m-6n6)
A. 
B. m5n5
C. 
D. 
Answer: C
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Write the complex number in polar form.-2
A. 2(cos 270° + j sin 270°) B. 2(cos 180° + j sin 180°) C. 2(cos 0° + j sin 0°) D. 2(cos 90° + j sin 90°)
Add or subtract. Simplify the answer.
- 
A. 
B. 
C. 
D. 
What number should be added to complete the square of the expression?x2 - 
x
A. 
B. - 
C. 
D. - 
Solve the problem.In a certain town the annual consumption, b, of beef (in pounds per person) can be estimated by 
where t is the number of years since 2010. Find and interpret the t-intercept of the graph of this function.
A. 34; If this trend continues, the annual consumption of beef in this town will be zero pounds per person in the year 2078. B. 68; The annual consumption of beef in this town was 68 pounds per person in 2010. C. 34; The annual consumption of beef in this town was zero pounds per person in 2010. D. 68; If this trend continues, the annual consumption of beef in this town will be zero pounds per person in the year 2078.