Factor the binomial completely.r2s2 - 1
A. (rs - 1)2
B. prime
C. (rs + 1)2
D. (rs + 1)(rs - 1)
Answer: D
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Determine the two equations necessary to graph the ellipse with a graphing calculator.
+ 
= 1
A. y = 
and y = -
B. y = 
and y = - 
C. y = 
and y = -
D. y = 
and y = - 
Use radical notation to write the expression. Simplify if possible.361/2
A. 24 B. 6 C. 12 D. 3
Solve the problem.If $1000 is invested at the end of each year in an annuity that pays 8%, compounded annually, the number of years it takes for the future value to amount to $22,000 is given by 
Use the change of base formula to find the number of years until the future value is $22,000, to the nearest tenth of a year.
A. 74.4 years B. 67.3 years C. 72.3 years D. 65.0 years
Complete the factoring.x2 - 10x + 24 = (x - 4)( )
A. 4 - x B. x2 + 4 C. x + 6 D. x - 6