Use a calculator to find the approximate value of the composition. Round answers to four decimal places, if necessary.tan (tan-1 (-8.4))
A. -5.3
B. -8.4
C. 11.5
D. 8.4
Answer: B
Mathematics
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Use the ratio test to determine if the series converges or diverges.
A. Diverges B. Converges
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Find the surface area of the circular solid. Unless otherwise specified, use 3.14 for ? and round your answer to the nearest tenth.Find the surface area of the hemisphere. Round your answer to the nearest hundredth.
A. 423.63 m2 B. 1017.36 m2 C. 508.68 m2 D. 763.02 m2
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Use the Half-angle Formulas to find the exact value of the trigonometric function. cos 165°
A. 
B. - 
C. 
D. - 
Mathematics
Simplify the expression involving rational exponents.271/3
A. 243 B. 81 C. 9 D. 3
Mathematics