Simplify the rational expression. Find all numbers that must be excluded from the domain of the simplified rational expression.
A. 
, x ? -7
B. - 
, x ? -7, 7
C. - 
, x ? -7, 7
D. 
, x ? 7
Answer: C
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Solve the problem.Suppose the sales of a particular brand of appliance are modeled by the linear function 
, where S(x) represents the number of sales in year x, with 
corresponding to 1982. Find the number of sales in 1990.
A. 6000 sales B. 11,750 sales C. 5750 sales D. 12,000 sales
Provide the appropriate response.Determine the number of real and imaginary solutions of the equation x8 = 1.
A. 8 real; 0 imaginary B. 0 real; 8 imaginary C. 1 real; 0 imaginary D. 2 real; 6 imaginary
Determine which is the better buy.A 21 oz can of vegetables for $12.60 or a 24 oz can of vegetables for $15.36.
A. Equal value B. 21 oz can of vegetables for $12.60 C. Not enough information D. 24 oz can of vegetables for $15.36
Are the triangles similar or not similar?
?
What will be an ideal response?