Mathematics, 24.06.2019 06:00, jetblackcap
Aparabola has a focus of f(2,8.5) and a directrix of y=9.5. the point p(x, y) represents any point on the parabola, while d(x,9.5) represents any point on the directrix. maria was asked to use the distance formula to write an equation to represent this parabola. here is her work: step 1: fp=dp step 2: (xβ2)2+(yβ8.5)2βββββββββββββββββ=(x βx)2+(yβ9.5)2ββββββββββββββββββ step 3: x2β4x+4+y2β17y+72.25=y2β19y+90.25 step 4: x2β4xβ14=β4y step 5: β14x2+x+72=y identify each incorrect step. select all answer choices that both state an incorrect step and explain why it is incorrect. if there is only one incorrect step, select "only" and the answer choice that states and explains the incorrect step. 1,step 3 is incorrect because she expanded the first binomial incorrectly. 2,only 3,step 2 is incorrect because she used the wrong signs for the coordinates of the focus. 4,step 4 is incorrect because she added the y-terms incorrectly. 5,step 5 is incorrect because she divided incorrectly. 6,step 3 is incorrect because a previous step is incorrect. 7,step 5 is incorrect because a previous step is incorrect. 8, step 4 is incorrect because a previous step is incorrect.
Answers: 1
Mathematics, 21.06.2019 15:30, kwarwick0915
Find the gradient of f(x, y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2β1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(β2,1,β2).
Answers: 1
Mathematics, 22.06.2019 00:50, Maxwell8066
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Mathematics, 22.06.2019 01:30, bobjill1609
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Mathematics, 22.06.2019 02:20, IkweWolf1824
Find the volume of the wedge cut from the first octant by the cylinder z=12-3y^2 and the plane x+y=2.
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Aparabola has a focus of f(2,8.5) and a directrix of y=9.5. the point p(x, y) represents any point o...
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