Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real numbers.-80
A. 0
B. -1
C. 1
D. -8
Answer: B
Mathematics
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Give an appropriate answer to the question.Determine the sum of the degrees of the vertices in a tree with 18 vertices.
A. 35 B. 38 C. 17 D. 34
Mathematics
Graph the linear inequality.y > 3.5
A. 
B. 
C. 
D. 
Mathematics
The fuel efficiency (in miles per gallon) of a sport utility vehicle (SUV) depends on its weight according to the formula
?
?
where x is the weight of an SUV in pounds. According to the model, what is the weight of the least fuel-efficient SUV?
?
A. 3,000 pounds B. 3,100 pounds C. 2,000 pounds D. 6,000 pounds E. 491 pounds
Mathematics
Solve the problem.Find (fg)(3) when f(x) = x - 1 and g(x) = -2x2 + 13x - 3.
A. 72 B. 36 C. 90 D. -84
Mathematics