Write the first n terms of the given arithmetic sequence (the value of n is indicated in the question).The first term is 22, and the common difference is 4; n = 5
A. 22, 26, 30, 34, 38
B. 4, 26, 48, 70, 92
C. 22, 4, 30, 34, 38
D. 22, 4, 52, 78, 104
Answer: A
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Find the exact value of the expression.cos-1 (-1)
A. 0
B. 2?
C. 
D. ?
Factor by grouping.xa - xb - 5a + 5b
A. (a - b)(x - 5) B. (a - 5)(x - b) C. (a - b)(x + 5) D. (x - a)(5 - b)
Use the REGRESSION feature on a graphing calculator.The use of bottled water in the United States has shown a steady increase in recent years. The table shows the annual per capita consumption for the years 1995 - 2001.
With x being the years since 1995, find the linear function that represents this data. Round your answer to two decimal places.
A. y = 0.1x2 + 0.29x + 4.57 B. y = 0.89x + 4.07 C. y = 4.07x + 0.89 D. y = 0.04x3 - 0.23x2 + 1.01x + 4.35
Determine whether the graph represents a function.
A. Yes B. No