Solve the system using Cramer's rule and a graphing calculator. (Round to two decimal places.)5.27x - 0.53y = 1-5.83x - 9.51y = 6
A. {(-0.12, 0.70)}
B. {(0.70, 0.12)}
C. {(-0.70, 0.12)}
D. {(0.12, -0.70)}
Answer: D
Mathematics
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Solve.
= 3 + 
A. -5, -8 B. -1 C. 5, 8 D. No solution
Mathematics
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth. Variables represent any real number.
A. -1.38 B. 1.50 C. 1.38 D. -1.50
Mathematics
Solve the polynomial inequality and graph the solution set on a number line.x2 - 3x - 28 ? 0
A. [-4, 7]
B. (-?, -4] ? [7, ?)
C. (-?, -4]
D. [7, ?)
Mathematics
Give the domain and range of the function.
A. Domain {-8, -4, -1, 1, 4, 8} ; Range {-3, 5, 9} B. Domain [-3, 9] ; Range [-8, 8] C. Domain {-3, 5, 9} ; Range {-8, -4, -1, 1, 4, 8} D. Domain [-8, 8] ; Range [-3, 9]
Mathematics