Mathematics, 23.07.2019 10:00 maddigrace3
If the endpoints of the diameter of a circle are (β8, 0) and (β12, 2), what is the standard form equation of the circle?
Answers: 1
![\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ \begin{array}{ccccccccc} &&x_1&&y_1&&x_2&&y_2\\ % (a,b) &&(~ -8 &,& 0~) % (c,d) &&(~ -12 &,& 2~) \end{array}\\\\\\ d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ d=\sqrt{[-12-(-8)]^2+[2-0]^2}\implies d=\sqrt{(-12+8)^2+(2-0)^2} \\\\\\ d=\sqrt{(-4)^2+2^2}\implies d=\sqrt{20}\qquad \qquad \qquad \qquad \stackrel{\textit{so the radius is then}}{\cfrac{\sqrt{20}}{2}}](/tpl/images/0123/0417/09273.png)
![\bf \textit{equation of a circle}\\\\ (x- h)^2+(y- k)^2= r^2 \qquad center~~(\stackrel{-10}{ h},\stackrel{1}{ k})\qquad \qquad radius=\stackrel{\frac{\sqrt{20}}{2}}{ r}\\\\ -------------------------------\\\\\ [x-(-10)]^2+[y-1]^2=\left( \frac{\sqrt{20}}{2} \right)^2\implies (x+10)^2+(y-1)^2=\cfrac{(\sqrt{20})^2}{2^2} \\\\\\ (x+10)^2+(y-1)^2=\cfrac{20}{4}\implies (x+10)^2+(y-1)^2=5](/tpl/images/0123/0417/3a209.png)
Another question on Mathematics
Mathematics, 21.06.2019 16:00
Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.
Answers: 2
Mathematics, 21.06.2019 18:00
Given: and prove: what is the missing reason in the proof? given transitive property alternate interior angles theorem converse alternate interior angles theorem
Answers: 1
Mathematics, 21.06.2019 20:30
Explain how you divide powers with like bases.discuss why the bases have to be the same.how are these rules similar to the rules for multiplying powers with like bases.
Answers: 1
Mathematics, 21.06.2019 21:20
Se tiene en una caja de canicas 10, 4 blancas y 6 negras ΒΏcual es la probabilidad que en 2 extracciones con reemplazo sean blancas? ΒΏcual es la probalidad que en 2 extracciones sin reemplazo sean negras?
Answers: 1
You know the right answer?
If the endpoints of the diameter of a circle are (β8, 0) and (β12, 2), what is the standard form equ...
Questions
Mathematics, 25.07.2019 01:30
Mathematics, 25.07.2019 01:30
Mathematics, 25.07.2019 01:30
Health, 25.07.2019 01:30
English, 25.07.2019 01:30
Social Studies, 25.07.2019 01:30
Mathematics, 25.07.2019 01:30
English, 25.07.2019 01:30
History, 25.07.2019 01:30
