Find the indicated sum. Find the sum of the first 7 terms in the geometric series 3 + 9 + 27 + . . .
A. 3279
B. 1092
C. 9840
D. 1122
Answer: A
Mathematics
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Find an exponential model for the following data set. Round your answer to two decimal places. t 0 2.13 4.26 6.39 y 6.09 8.35 11.45 15.71?
A. 
B. ?
C. ?
D. ?
Mathematics
Find the quadratic approximation of f at x = 0.f(x) = ln(1 + sin 9x)
A. Q(x) = 1 + 9x + 
x2
B. Q(x) = 9x + 
x2
C. Q(x) = 9x - 
x2
D. Q(x) = 1 - 9x + 
x2
Mathematics
Establish the identity.
2 = 1 - sin x
What will be an ideal response?
Mathematics
Provide an appropriate response.Explain what is wrong with the following solution for the equation 
in the interval 
sin 2? = 
sin ? = 
? = 
or ? = 
style="vertical-align: -17.0px;" /> What will be an ideal response?
Mathematics