Find a formula for the nth term of the sequence.7, -7, 7, -7, 7 (7's with alternating signs)
A. an = 7(-1)n+1
B. an = 7(-1)2n-1
C. an = 7(-1)2n+1
D. an = 7(-1)n
Answer: A
Mathematics
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Find an upper bound for the magnitude |E| of the error in the approximation f(x, y) ? L(x, y) at the given point over the given region R.
at 
; R: |x - 1| ? 0.1, |y - 1| ? 0.1
A. |E| ? 0.0176 B. |E| ? 0.0139 C. |E| ? 0.0113 D. |E| ? 0.0093
Mathematics
Provide an appropriate response.Find the perimeter of a rectangle whose length is 14 inches and whose height is 9 inches. Use the formula P = 2(l + w).
Fill in the blank(s) with the appropriate word(s).
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Use l'H
pital's rule to find the limit.
A. 0
B. ?
C. 
D. 1
Mathematics
Factor the trinomial completely. If the trinomial cannot be factored, say it is prime.x2 + 49x + 50
A. (x + 50)(x + 1) B. prime C. (x + 50)(x - 1) D. (x + 10)(x + 5)
Mathematics