Factor the sum or difference of two cubes.x3 - 8
A. (x + 8)(x2 - 1)
B. (x - 2)(x2 + 2x + 4)
C. (x - 2)(x2 + 4)
D. (x + 2)(x2 - 2x + 4)
Answer: B
Mathematics
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Find the limit.
A. 1
B. ?
C. 
D. 
Mathematics
Solve the initial value problem.u'(x) = 7u + 35, u(1) = 0
A. u = e7x - 7 - 5 B. u = 25e7x + 7 - 5 C. u = 5e7x - 7 - 5 D. u = 25e7x + 7 + 5
Mathematics
Graph the function.y = 
sin (x - ?)
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.An employee was paid $12,556 during the first half of last year. During the second half she was paid 
How much more was her income during the second half?
A. $18,257 B. $43,470 C. $43,369 D. $18,358
Mathematics