At what points is the given function continuous?f(x, y, z) = 
A. All (x, y, z) such that x - y - z ? 0
B. All (x, y, z)
C. All (x, y, z) such that x ? 0 and y + z ? 0
D. All (x, y, z) in the first octant
Answer: B
Mathematics
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Use the data to construct a frequency distribution.
First Class = 2-4
A. 
B. 
C. 
D. 
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Find the quotient. Write the answer in standard form.
A. 7 B. 7i C. -7 D. -7i
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Use a graphing calculator to approximate the real zeros. Give each zero as a decimal to the nearest tenth.f(x) = x3 + x2 - 11x - 11
A. 1, 3.3, -3.3 B. 1, 3.3i, -3.3i C. -1, 3.3, -3.3 D. 1, 5.5, -5.5
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Give all possible rational zeros for the following polynomial.P(x) = 2x3 - 5x2 + 7x - 17
A. ±1, ± 
, ±2, ± 
B. ±1, ±2, ±17
C. ±1, ±17, ± 
, ± 
D. ±1, ±2, ±17, ± 
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