Find the exact value of the trigonometric expression without the use of a calculator.sin 75°

A. - 
B.  
C.  
D. - 

Answer: B

Mathematics

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Find the GCF.144 and 216

A. 24 B. 70 C. 36 D. 72

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Provide an appropriate response.Prime numbers of the form 22k + 1 are called  primes.

A. Fermat B. nonconstructible C. Gaussian D. constructible

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Round to the indicated place value.Round to the nearest thousandth: 0.711412

A. 0.72 B. 0.711 C. 0.7114 D. 0.71

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Express in terms of i.

A. -20i 
B. i
C. 20i 
D. ±20 

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Mathematics