![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 15:01, eliascampos823
Aparabola has a focus of f(β11,5) and a directrix of x=β12. the point p(x, y) represents any point on the parabola, while d(β12,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: fp=dp step 1: (xβ(β11))2+(yβ5)2β=(xβ(β12))2+(yβy) 2β step 2: (xβ(β11))2+(yβ5)2=(xβ(β12))2+(yβy)2 step 3: x2+22x+121+y2β10y+25=x2+24x+144 step 4: y2β10y+2=2x step 5: 12y2β10y+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.
step 3 is incorrect because he expanded the first binomial incorrectly.
step 5 is incorrect because a previous step is incorrect.
only
step 5 is incorrect because he divided incorrectly.
step 1 is incorrect because he used the wrong signs for the coordinates of the focus.
step 2 is incorrect because the square roots cancel the squares.
step 3 is incorrect because a previous step is incorrect.
step 4 is incorrect because a previous step is incorrect.
![answer](/tpl/images/cats/otvet.png)
Answers: 3
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 14:00, haydencheramie
In the diagram, the measure of angle 9 is 85Β° which angle must also measure 85Β°?
Answers: 3
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:30, extasisjorge
Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:30, PONBallfordM89
Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function. a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.
Answers: 1
Do you know the correct answer?
Aparabola has a focus of f(β11,5) and a directrix of x=β12. the point p(x, y) represents any point o...
Questions in other subjects:
![Konu](/tpl/images/cats/istoriya.png)
History, 01.08.2019 18:30
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 01.08.2019 18:30
![Konu](/tpl/images/cats/istoriya.png)
History, 01.08.2019 18:30
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mkx.png)