Find the surface area or volume.The region between the curve y = sinx, 0 ? x ? 2.1, and the x-axis is revolved about the x-axis to generate a solid. Use a table of integrals to find, to two decimal places, the volume of the solid generated.
A. 3.98
B. 4.06
C. 4.21
D. 3.80
Answer: A
Mathematics
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Evaluate the spherical coordinate integral.
A. 
?
B. 
?
C. 
?
D. 
?
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Write the whole number in expanded form.390,506
A. 300,000 + 90,000 + 5000 + 6 B. 300,000 + 9000 + 500 + 6 C. 390,000 + 500 + 6 D. 300,000 + 90,000 + 500 + 6
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Find the exact value of the expression.sin 75°
A. 
B. 
C. 
D. 
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Perform the indicated operation. Write the answer without exponents.
A. 600,000,000 B. 60,000 C. 6000 D. 600,000
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