Write a formula for the nth term of the infinite sequence. Do not use a recursion formula.1, 
, 
, 
, 
, . . .
A. an = 
B. an = 
C. an = 
n-1
D. an = 
Answer: A
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Find the coordinates of the centroid of the curve.Find the coordinates of the centroid of the curve x = e4t cos 4t, y = e4t sin 4t, 0 ? t ? 
.
A. (
, 
) = 
B. (
, 
) = 
C. (
, 
) = 
D. (
, 
) = 
Solve the problem.A new exhibit is scheduled to open at the local museum. Museum officials expect that 5000 people will visit the exhibit in its first week, and that the number of visitors will drop by 10 people per week after the first week during the first 6 months. Find the total number of visitors expected in the exhibit's first 7 weeks.
A. 24,850 visitors B. 34,790 visitors C. 34,730 visitors D. 29,850 visitors
Solve the equation.|3 - 9x| = 4
A. 
B. 
C. 
D. 
Write the phrase as a mathematical expression. Use x as the variable.6 times some number
A. 6x
B. 6 - x
C. 6 + x
D. 