Use the formula for Sn to find the sum of the first five terms of the geometric sequence. Round to the nearest hundredth, if necessary.
, 
, 
, 
, . . .
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the unit tangent vector of the given curve.r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 
tk
A. T(t) = 
i + 
j + 
k
B. T(t) = 
i - 
j + 
k
C. T(t) = 
i - 
j + 
k
D. T(t) = 
i - 
j + 
k
Mathematics
Solve the equation.(ex)x ? e56 = e15x
A. {8} B. {7} C. {7, 8} D. {-7, -8}
Mathematics
Provide an appropriate response.Which one of the following is a description of the graph of the solution set for the given system?4x2 + 9y2 < 36y < -x
A. Outside the ellipse and below the line B. Inside the ellipse and below the line C. Inside the ellipse and above the line D. Outside the ellipse and above the line
Mathematics
Simplify the fraction.
A. 
B. 
C. 
D. 
Mathematics