Mathematics, 07.10.2020 01:01, hp1013756
A parabola can be represented by the equation y2 = - *.
What are the coordinates of the focus and the equation
of the directrix?
0
V
O focus: () directrix: * =
=
O focus: (10) directrix: x=-
O focus: (-4,0); directrix: x = 4
O focus: (4,0); directrix: x = -4
Answers: 3
Mathematics, 21.06.2019 18:30, Karinaccccc
Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?
Answers: 2
Mathematics, 21.06.2019 18:30, bvaughn4152
The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.
Answers: 1
A parabola can be represented by the equation y2 = - *.
What are the coordinates of the focus and t...
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