Mathematics, 24.06.2019 06:00 jlayne0605
Aparabola has a focus of f(−11,5) and a directrix of x=−12. the point p(x, y) represents any point on the parabola, while d(−12,y) represents any point on the directrix. miguel was asked to use the distance formula to write an equation to represent this parabola. here is his work: step 1: fp=dp step 2: (x−(−11))2+(y−5)2−−−−−−−−−−−−−−−−−− −√=(x−(−12))2+(y−y)2−−−−−−−−−−−−−−− −−−−√ step 3: x2+22x+121+y2−10y+25=x2+24x+144 step 4: y2−10y+2=2x step 5: 12y2−10y+1=x 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 he expanded the first binomial incorrectly. 2, step 5 is incorrect because a previous step is incorrect 3, step 2 is incorrect because he used the wrong signs for the coordinates of the focus. 4, step 3 is incorrect because a previous step is incorrect. 5, step 5 is incorrect because he divided incorrectly. 6, only 7, step 4 is incorrect because a previous step is incorrect.
Answers: 3
Mathematics, 21.06.2019 12:40
The figure above shows the lengths of thesides of a rectangle in cm. find the valuesof x and y and then the area of the rectangle.sides: top= 3x - yleft= 3y + 4bottom= 2x + yright= 2x - 3 use both methods, elimination and substitution, if possible.
Answers: 1
Mathematics, 22.06.2019 04:30
Simplify 1 divided by 2/3 x (-3) divided by 1/6 x (-10)
Answers: 2
Mathematics, 22.06.2019 05:20
Drag each tile to the correct box. not all tiles will be used. arrange the steps to solve the equation . simplify to obtain the final radical term on one side of the equation. raise both sides of the equation to the power of 2. apply the zero product rule. use the quadratic formula to find the values of x. simplify to get a quadratic equation. raise both sides of the equation to the power of 2 again.
Answers: 1
Aparabola has a focus of f(−11,5) and a directrix of x=−12. the point p(x, y) represents any point o...
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