Evaluate.

A. 10
B. 21
C. 1
D. 42


Answer: B

Mathematics

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Find the center and radius of the circle with the given equation. x2 + y2 = 9

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Find the equation y = ?0 + ?1x of the least-squares line that best fits the given data points.Data points: (2, 1), (3, 2), (7, 3), (8, 1)X = , y = 

A. y = -  + x
B. y =  + x
C. y =  - x
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Use mathematical induction to prove that for all integers n ? 5, 1 + 4n < 2^n.

What will be an ideal response?

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Perform the indicated operation and express in lowest terms. - 

A.
B.
C.
D.

Mathematics