Find all numbers that must be excluded from the domain of the rational expression.
A. x ? -2, x ? 7
B. x ? 0
C. x ? -7, x ? 2
D. x ? 2
Answer: A
Mathematics
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Solve the problem.T and T' are similar triangles. Suppose that the base of T' is 5 times longer than the base of T. If the area of T' is 100 sq. in., what is the area of T?
A. 20 sq. in. B. 500 sq. in. C. 4 sq. in. D. 5 sq. in. E. none of these
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Provide an appropriate response.Explain why the solution of a system of equations is the point of intersection of the graphs of the equations.
What will be an ideal response?
Mathematics
Simplify the expression.
?
What will be an ideal response?
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Solve the problem.A television offer advertised a set of knives for $15 down and $7 a month for 9 months. What is the total cost of the knives?
A. $68 B. $63 C. $78 D. $88
Mathematics