Use the Pythagorean theorem to find the length of the unknown side of the right triangle. Express your answer as a simplified radical.

A. 3
B. 9
C. 9
D. 3

Answer: A

Mathematics

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Find the exact value of the real number y.y = arccos 

A.
B.
C.
D. - 

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Solve the problem relating to the Fibonacci sequence.F28 = 317,811, F30 = 832,040Find F29.

A. F29 = 1,149,851 B. F29 = 514,229 C. F29 = 196,418 D. F29 = 1,346,269

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Mathematics

Divide, if possible. Write the answer in simplest form. ÷  

A.
B.
C.
D.

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Mathematics

Solve the direct variation.Suppose x varies directly as y. If x = 8 when y = 48, what is the value of y when 

A. 16 B. 36 C. 64 D. 24

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Mathematics