Express the sum using summation notation. Use a lower limit of summation, not necessarily 1, and k for the index of summation.(a + 1) + (a + b) + (a + b2) + . . . + (a + bn)
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve.Find a linear function g such that g(4) = -31 and g(5) = -39.
A. g(x) = 
x - 
B. g(x) = -8x + 1
C. g(x) = - 
x - 
D. g(x) = 8x - 63
Mathematics
Simplify the expression.
+ 
A. m + 5
B. 
C. m - 5
D. m - 2
Mathematics
Find the exact value under the given conditions.cos ? = - 
, 
< ? < ?; sin ? = - 
, ? < ? < 
Find cos (? + ?).
A. 
B. 
C. 
D. 
Mathematics
Find sec ? if 
and ? terminates in QIII.
?
A. 
B. 
C. 
D. 
E. 
Mathematics