Solve the problem.Find the missing length in the following right triangle. If necessary, round to the nearest tenth. 

A. 14 in.
B. 221 in.
C. 21 in.
D. 442 in.

Answer: C

Mathematics

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State whether you think the difference between what occurred and what you would expect by chance is statistically significant.You draw a card at random from a deck of cards and replace it. You repeat this 60 times and get a heart 13 times.

A. Not statistically significant B. Statistically significant

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Mathematics

Find the limit.

A. - 
B. ?
C. -?
D. 5

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Mathematics

Solve the equation by factoring.x(2x - 24) = -54

A. x = -3 or x = 9 B. x = 9 or x = 3 C. x = -3 or x = -9 D. x = -9 or x = 9

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Mathematics

Write the first four terms of the sequence.an = 1 - 

A. a1 = 0, a2 = , a3 = , a4 = 
B. a1 = 1, a2 = , a3 = , a4 = 
C. a1 = 1, a2 = , a3 = , a4 = 
D. a1 = 0, a2 = , a3 = , a4 = 

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Mathematics