Find the domain of the rational expression.
A. {x|x is a real number and x ? 7}
B. {x|x is a real number}
C. {x|x is a real number and x ? 3}
D. {x|x is a real number and x ? 3 and x ? 7}
Answer: B
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Solve the problem.A charged particle of mass m and charge q moving in an electric field E has an acceleration a given by 
where q and E are constants. Find 
.
A. 
= - 
B. 
= - 
C. 
= qEm
D. 
= 
Solve the problem.A painter needs to cover a triangular region 65 meters by 66 meters by 71 meters. A can of paint covers 70 square meters. How many cans will be needed?
A. 14 cans B. 28 cans C. 318 cans D. 3 cans
Use a calculator to find the value of the expression rounded to two decimal places.sin-1 
A. 0.64 B. 53.13 C. 36.87 D. 0.93
The graph of a function f is given. Use the graph to answer the question.How often does the line y = -10 intersect the graph?
A. once B. twice C. three times D. does not intersect