Find the nth, or general, term for the geometric sequence.10, 100, 1000, ...
A. an = 10n-1 + 9
B. an = 10 + 90(n - 1)
C. an = 10n+1 - 90
D. an = 10n
Answer: D
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Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local minimum at x = +1; local maximum at x =-1; concave up on (0, ?); concave down on (-?, 0) B. Local minimum at x = +1; local maximum at x =-1; concave down on (0, ?); concave up on (-?, 0) C. Local maximum at x = +1; local minimum at x =-1; concave up on (0, ?); concave down on (-?, 0) D. Local maximum at x = +1; local minimum at x =-1; concave up on (-?, ?)
Solve the inequality and graph the solution set.|z - 7| ? 0
A. [7, ?)
B. (-?, ?)
C. ?
D. [7, -7]
Solve the equation. Give the exact solution or solutions.log4 (x - 4) + log4 (x - 4) = 1
A. {6}
B. {-
, 
}
C. {-6, 6}
D. {
}
Find a row echelon form or a reduced row echelon form, as indicated, for the given matrix.Find a reduced row echelon form for the matrix.
What will be an ideal response?