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which of the following equations represents a parabola that opens down and has a vertex at (3, -1)? Answer choices. A. y= -2(x-3)^2+1 B. y= 2(x-3)^2-1 C. y= -2(x+3)^2-1 D. y= -2(x-3)^2-1
answered
May 26, 2018
Mathematics
high-school
6
votes
5.6k
views
In how many different orders can you line up 8 cards on a shelf
answered
May 15, 2018
Mathematics
high-school
4
votes
69.3k
views
Early humans used __________ and __________ as weapons. A. fire . . . wood B. flint . . . bone C. fire . . . metal D. bone . . . animal hides
answered
Jan 7, 2018
History
college
2
votes
83.1k
views
A harmful attitude based on inaccurate generalizations about a group of people is known as
answered
Jul 1, 2017
Social Studies
high-school
5
votes
45.9k
views
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