Use the formula for the sum of the first n terms of a geometric sequence to evaluate the sum.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.For the function 
at the point 
, find the unit vector for which f is increasing most rapidly.
A. 
i + 
j
B. 
i + 
j
C. 
i + 
j
D. 
i + 
j
Mathematics
Solve the equation using a graphing calculator. Find solutions accurate to two decimal places.(1.67x + 6.67)2 = 9.99
A. 1.09, -1.09 B. 2.10, -2.10 C. 5.89, -2.10 D. -2.10, -5.89
Mathematics
Provide an appropriate response.Find the area of the region bounded by the curves y = x2 and y = x + 2 from x = 1 to x = 2.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Simplify the radical expression. Assume all variables represent positive real numbers.
A. 39
B. 3
C. 
D. 9
Mathematics