Solve the problem.The table lists the average annual cost (in dollars) of tuition and fees at a certain 2-year college for selected years, where year 1 represents 1992, year 3 represents 1994, and so on. Use the ordered pairs (3, 1158) and (9, 1314) to find the equation of a line that approximates the data. (If necessary, round the slope to the nearest hundredth and the y-intercept to the nearest whole number.) 

A. y = 52x + 1002
B. y = 26x - 1236
C. y = 26x + 1002
D. y = 26x + 1080


Answer: D

Mathematics

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Solve the given differential equation. + 49y = cos 7x

A. y = c1 sin 7x + c2 cos 7x + x cos 7x
B. y = c1 sin 7x + c2 cos 7x - x sin 7x
C. y = c1 sin 7x + c2 cos 7x + x sin 7x
D. y = c1 sin 7x + c2 cos 7x + x sin 7x + x cos 7x

Mathematics

Answer the question.Which of the following is NOT listed as a suggestion to follow when preparing for an exam?

A. Reread the sections in the textbook that will be covered on the exam. B. Relax, and work on the exam thoughtfully. C. Revisit your homework and the chapter review problems. D. Test yourself.

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Find the LCD of the given rational expressions.; 8

A. 7x + 4 B. 24 C. 7x D. 56x + 32

Mathematics

Write the reciprocal of the number.

A. 15
B. -15
C. -1
D.

Mathematics