Factor the four-term polynomial by grouping.8x + 80 + xy + 10y
A. (y + 10)(8x + y)
B. (y + 10)(x + 8)
C. (x + 10y)(8 + y)
D. (x + 10)(8 + y)
Answer: D
Mathematics
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Write the polynomial in descending order.k3 - 5k + 1 - 9k2
A. k3 - 5k - 9k2 + 1 B. k3 - 9k2 - 5k + 1 C. -9k2 - 5k + k3 + 1 D. 1 - 5k - 9k2 + k3
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Solve the problem.For the vectors u and v with magnitudes 
= 3 and 
= 6, find the angle ? between u and v which makes 
= 1
A. 80.41 B. 60.00 C. 70.53 D. 19.47
Mathematics
Convert the units.14 yd2 = 
ft2
A. 378 B. 126 C. 168 D. 42
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Use the graph to identify domain and range.
A. domain: (-?, ?) range: (-4, ?) B. domain: [-4, ?) range: (-?, ?) C. domain: (-4, ?) range: (-?, ?) D. domain: (-?, ?) range: [-4, ?)
Mathematics