Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.-6x + 7y = 28-2x - 3y = -12
A. (-1, 5)
B. (0, 4)
C. (0, 5)
D. No solution
Answer: B
Mathematics
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Answer appropriately.The cost of renting an automobile is $31 dollars per day plus $0.09 per mile. Express the cost c(x) of renting a car for the day as a function of the miles driven x.
A. c(x) = 31x + 0.09 B. c(x) = 0.09x + 31 C. c(x) = -0.09x + 31 D. c(x) = 0.09x - 31
Mathematics
Match the function with the graph that best describes the situation.The amount of rainfall as a function of time, if the rain fell more and more softly.
A. 
B. 
C. 
D. 
Mathematics
Find the exact value of the indicated trigonometric function of ?.cot ? = - 
, cos ? < 0Find csc ?.
A. - 
B. 
C. - 
D. 
Mathematics
Find the inverse of the matrix, if it exists.
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Mathematics