Find the circumference and area of a circle having the given diameter or radius. Use 3.14 for ?. Round your results to the nearest tenth.r = 8.5 mi
A. 26.7 mi; 907.5 mi2
B. 26.7 mi; 106.8 mi2
C. 53.4 mi; 226.9 mi2
D. 53.4 mi; 53.4 mi2
Answer: C
Mathematics
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Translate to an equation, then solve.Negative three times the sum of x and eight is equal to x minus the difference of x and twenty-one.
A. -3(x + 8) = x - (21 - x), x = 3 B. -3(x + 8) = x - (x - 21), x = -1 C. -3(x + 8) = x - (x - 21), x = -15 D. -3(x + 8) = x - (21 - x), x = -1
Mathematics
Graph the linear inequality.x > 7 
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B. 
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Graph the hyperbola.1y2 - 4x2 = 4
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B. 
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D. 
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Sketch the graph of the function. Label at least three points.f(x) = x2
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B. 
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D. 
Mathematics