Use Cramer's rule to solve the system of linear equations. 7x - 7y = -7 2x + 4y = 4
A. (0, 1)
B. (-1, 2)
C. No solution
D. (0, 2)
Answer: A
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Find the mode or modes.Last year, nine employees of an electronics company retired. Their ages at retirement are listed below. Find the mode(s).56?60?6457?53?6668?5854
A. 58 B. 56, 60, 64, 57, 53, 66, 68, 58, 54 C. 59.6 D. No mode
Provide an appropriate response.The list of constructible regular n-gons up to 
is 
.
A. 3, 4, 5, 6, 8, 10, 12, 16, 17, 20 B. 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20 C. 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 18, 20 D. 3, 4, 5, 6, 8, 10, 12, 14, 15, 16, 17
Solve the problem, if possible. Round your answer to the nearest tenth, when appropriate.The area of a square is 81 cm2. If the same amount is added to one dimension and removed from the other, the resulting rectangle has an area 9 cm2 less than the area of the square. How much is added and subtracted?
A. 3 cm B. 9 cm C. 4 cm D. Cannot be determined without additional information
Perform the requested operation or operations. Find the domain of each.f(x) = 
, g(x) = 
Find fg.
A. (3x - 2)(
); domain: [- 
,?)
B. (
)(
); domain: [
,
C. (5x + 3)(9x - 4); domain: (-?,?)
D. (5x + 3)(3x - 2); domain: (-?,?)