Solve the quadratic equation by completing the square.x2 = 7 - 8x
A. x = -4 ± 
B. x = -1 ± 
C. x = 4 + 
D. x = -4 ± 2
Answer: A
Mathematics
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Solve the problem. Round to the nearest cent.The list price of a car is $6,790. It is available at either a 5/20/5 or a 25/30 discount. Which discount gives the lower price? By how much?
A. 5/20/5, $1,337.63 B. 25/30, $1,337.63 C. 25/30, $1,697.50 D. 5/20/5, $1,697.50
Mathematics
Solve the problem.Find the arithmetic mean for the collection of numbers.8, -1, -6, -3, 7
A. 1 B. -1 C. 3 D. 1.25
Mathematics
Write the decimal as a fraction or mixed number in lowest terms.6.8
A. 1
B. 
C. 
D. 6
Mathematics
Solve the inequality.x2 - 3x ? 4
A. [-1, 4] B. (-4, 1) C. [-4, 1] D. (-?, -4] or [1, ?)
Mathematics