Find the first term a1 and the common difference d of the arithmetic sequence.4, 16, 28, 40, 52, . . .
A. a1 = 4, d = 12
B. a1 = 4, d = 4
C. a1 = 12, d = 8
D. a1 = 12, d = -12
Answer: A
Mathematics
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A. x-intercept: (0, 0); y-intercept: (0, 0)
B. x-intercept: (0, 0); y-intercept: (0, 0)
C. x-intercept: (0, 0); y-intercept: (0, 0)
D. x-intercept: (0, 0); y-intercept: (0, 0)
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Determine whether the lines are parallel, perpendicular, or neither.y = -5x - 9y = 5x + 5
A. parallel B. perpendicular C. neither
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Add.32,297,2176,905,419504,473
A. 45,094,626 B. 49,647,013 C. 45,236,756 D. 45,106,756
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Add or subtract by first simplifying each radical and then combining any like radical terms. Assume that all variables represent positive real numbers.
+ 
+ 
+ 9
A. 86
B. 20
+ 10
C. 208
+ 450
D. 20
+ 66
Mathematics