Find the real or imaginary solutions by using the quadratic formula.5x2 - 35x + 60 = 0
A. {3i, 4i}
B. {-3, -4}
C. {0, 3, 4}
D. {3, 4}
Answer: D
Mathematics
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B. 
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D. 
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Graph the inequality.
+ 
? 1
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B. 
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D. 
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Use the graph to determine the domain and range of the function. 
A. domain: {x|x ? -4, x ? 4} range: {y|y ? 0 or y ? 1} B. domain: {x|x ? 0 or x > 1} range: {y|y ? -4, y ? 4} C. domain: {x|x ? -4, x ? 4} range: {y|y ? 0 or y > 1} D. domain: all real numbers range: all real numbers
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A Norman window has the shape of a rectangle surmounted by a semicircle as in the figure below. If the perimeter of the window is 40 ft, express the area, A, as a function of the width, x, of the window.
A. 
B. 
C. 
D. 
E. 
Mathematics