State the domain and range of the function.f(x) = 
A. Domain = (-?, ?); range = (7, ?)
B. Domain = (-?, ?); range = (0, 7)
C. Domain = (-?, ?); range = (-?, ?)
D. Domain = (0, ?); range = (-?, ?)
Answer: A
Mathematics
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Add or subtract vertically.Subtract -x3y3 + x2y2 - x2y - 4x + 4 from 7x3y3 + 6x2y2 - x2y + xy2 + 4x + 2.
A. 8x3y3 + 7x2y2 - 2x2y + xy2 + 6 B. 8x3y3 + 7x2y2 + x2y + 8x - 2 C. 8x3y3 + 5x2y2 + 2xy2 - 2 D. 8x3y3 + 5x2y2 + xy2 + 8x - 2
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Graph the function over a one-period interval.y = 3cos 
A. 
B. 
C. 
D. 
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Approximate the given square root to the nearest tenth using the guess-and-check method.
A. 3.4 B. 4.5 C. 3.5 D. 3.6
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Use trigonometric identities to find the exact value.
A. -
B. - 
C. -2
D. - 
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