Mathematics, 01.03.2021 01:00 CamFootball638
Which equation represents a parabola with the focus at (0,-1) and the directrix y=1 ? (show work or explain correct answer)
(1) x^2 = -8y
(2) x^2 = -4y
(3) x^2 = 8y
(4) x^2 = 4y
Answers: 1
Mathematics, 21.06.2019 14:00
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Mathematics, 21.06.2019 18:00
Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?
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Mathematics, 21.06.2019 18:30
Select 2 statements that are true about the equation y+6=-10(x-3).1) the slope of the line is -102) the slope of the line is 33) one point on the line is (3,6)4) one point on the line is (3,-6)
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Mathematics, 21.06.2019 19:30
Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.
Answers: 1
Which equation represents a parabola with the focus at (0,-1) and the directrix y=1 ? (show work or...
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