Factor by grouping.30x2 - 18xy - 25xy + 15y2
A. (30x - 5y)(x - 3y)
B. (6x + 5y)(5x - 3y)
C. (6x - 5)(5x - 3)
D. (6x - 5y)(5x - 3y)
Answer: D
Mathematics
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Use the tests for divisibility to answer the question.Is 180 divisible by 5?
A. Yes B. No
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Find the vertex, focus, and directrix of the parabola with the given equation.(y - 3)2 = -20(x - 2)
A. vertex: (3, 2) focus: (-2, 2) directrix: x = 8 B. vertex: (2, 3) focus: (-3, 3) directrix: x = 7 C. vertex: (2, 3) focus: (7, 3) directrix: x = -3 D. vertex: (-2, -3) focus: (-7, -3) directrix: x = 3
Mathematics
Perform the indicated clock arithmetic.(-1) ? 8 (12-hr clock)
A. -5 B. 6 C. 7 D. 5
Mathematics
Write the number in decimal notation.Fifteen and one hundred forty-six thousandths
A. 15.146 B. 15,146 C. 0.15146 D. 15.0146
Mathematics