Evaluate the expression.
?

?

A. 63
B. 19
C. 21
D. 2
E. 91


Answer: E

Mathematics

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A. Not an identity B. Identity

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Solve.In Satoru's hometown, the highest temperature ever recorded is 107°F. Convert this temperature to Celsius. Round to the nearest tenth of a degree.

A. 224.6° C B. 41.7° C C. 27.4° C D. 77.2° C

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Evaluate the sum. Round to two decimal places, if necessary. 

A. -534 B. 351,788 C. 46 D. 534

Mathematics

Find the foci of the given hyperbola.9x2 - y2 = 9

A. (0, ), (0, -)
B. (0, 3), (0, -3)
C. (3, 0), (-3, 0)
D. (, 0), (-, 0)

Mathematics