Use the echelon method to solve the system of two equations in two unknowns.  x + 5y = 2 2x + 6y = 4

A. (3, 2)
B. (-2, -1)
C. (2, 0)
D. No solution


Answer: C

Mathematics

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Estimate the answer to the problem.An appliance store sells 38 refrigerators a week. Without finding the exact amount, calculate the total amount of money the store makes in a week if each refrigerator costs $938.

A. $30,000 B. $40,000 C. $27,000 D. $36,000

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Solve the problem.Calculate the number of shares purchased with a $8000 investment in a no load mutual fund with a net asset value of $8.12. Round to three decimal places.

A. 98.522 shares B. 985.222 shares C. 1015.000 shares D. 6496.000 shares

Mathematics

Find the exact value of the following expression without using a calculator.csc 

A.
B.
C.
D.

Mathematics

Perform the indicated operations and simplify the expression. ? ?

A.
B.
C.
D.
E.

Mathematics