Find the eccentricity e of the hyperbola.8x2 - 9y2 = 72
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the equation.
- x = 6
A. {7, -3} B. {-7} C. {-7, -3} D. {-3}
Mathematics
Use the vertex and intercepts to sketch the graph of the quadratic function.f(x) = 4 - (x - 2)2 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.If P dollars are invested at a simple interest rate r (in decimals), the amount A that will be available after t years is A = P + Prt. If $1800 is invested at a rate of 12.7% simple interest, how long will it before the amount of money available is $2142.90?
A. 0.5 yr B. 5.5 yr C. 1.5 yr D. 1.2 yr
Mathematics
Use the order of operations to simplify the expression.
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+ 
? 
A. 
B. 
C. 
D. 
Mathematics