Provide an appropriate response.Find the sum of the series 
by expressing 
as a geometric series, differentiating both sides of the resulting equation with respect to x, and replacing x by 
.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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The 15th term of an arithmetic sequence is 105, and the first term is -7. Find the common difference. ?
A. 8 B. -10 C. 26 D. -8 E. 10
Mathematics
Solve the system of equations using Cramer's Rule if it is applicable. If Cramer's Rule is not applicable, say so.
A. x = 6, y = 1, z = 6; (6, 1, 6) B. x = 4, y = -6, z = -1; (4, -6, -1) C. x = 4, y = 6, z = 1; (4, 6, 1) D. x = 5, y = 4, z = 1; (5, 4, 1)
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Find the mode of these values: ? 4, 4, 8, 8, 4, 7, 8, 4 ?
A. 4 B. 7 C. 5.5 D. 8 E. 3
Mathematics
Factor the trinomial completely. If the polynomial cannot be factored, write "prime."z2 - 12z + 36
A. (z - 6)(z + 6) B. (z - 6)2 C. (z + 6)2 D. (z - 12)(z + 12)
Mathematics