Solve the rational inequality.
+ 
? - 
A. (-?, -2 ] ? [ 1, 2)
B. (-?, -4 ] ? (-2, 1] ? (2, ?)
C. [-4, -2) ? [1, 2)
D. [-4, -2) ? (-2, 1]
Answer: C
Mathematics
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Find a formula for the nth term of the arithmetic sequence whose first term a and common difference d are given.a = 2, d = 4
A. an = 4n + 2 B. an = 4n - 2 C. an = n + 4 D. an = 2n - 4
Mathematics
Solve the inequality. Express your answer using interval notation. Graph the solution set.x - 4 < -6
A. (-?, -2]
B. (-?, -2)
C. (-?, -10)
D. (-2, ?)
Mathematics
Solve the initial-value problem.
Mathematics
Use the integration capabilities of a graphing utility to approximate the arc length of the graph of 
on the interval 
. Round your answer to three decimal places.
?
A. 3.620 B. 5.020 C. 10.540 D. 3.820 E. 7.640
Mathematics