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Mathematics 8 Online
OpenStudy (anonymous):

Please Please Please Help!!! MEDAL! I need to figure this out. Ive been waiting for someone to help me for like 10 hrs. please?! (Attached)

OpenStudy (anonymous):

OpenStudy (anonymous):

@mathhelpplease12 Can you help me?

OpenStudy (anonymous):

Do you know how to do it?

OpenStudy (anonymous):

@bubblemath122 @mathstudent55

OpenStudy (anonymous):

Look in an algebra book at the equation of an ellipse and the equation of a hyperbola. It should be all down hill from there.

OpenStudy (anonymous):

My choice D

OpenStudy (anonymous):

Thank You!

OpenStudy (anonymous):

I have tons of these left

OpenStudy (anonymous):

you're welcome ^_^

OpenStudy (anonymous):

sure I'll try

OpenStudy (anonymous):

OpenStudy (anonymous):

It is in the standard form (X/a)²+(Y/b)² =1 where X = x -p, Y = y - q with (p, q) the center; that is (- 7, 3). Hence a = √16 = 4, b = √4 = 2 . eccentricity = √[1 - (b/a)²] = √[1 - (2/4)²] = (√3)/2 I'd go with B

OpenStudy (anonymous):

thanks. can i ask you more? do u mind?

OpenStudy (anonymous):

I don't mind

OpenStudy (anonymous):

OpenStudy (anonymous):

I'd say C

OpenStudy (anonymous):

http://prntscr.com/2m20d2

OpenStudy (anonymous):

Which of the following equations represents an ellipse having a major axis of length 18 and foci located at (4,7) and (4,11)?

OpenStudy (anonymous):

it's going take me some time to check all this

OpenStudy (anonymous):

take your time. your amazing. I cant believe your helping me! :)

OpenStudy (anonymous):

I love helping people but I'm not always right! nobody is always right so I'll try my best

OpenStudy (anonymous):

it's A

OpenStudy (anonymous):

i understand, im so happy ur helping me. if i was alone i would fail. im already failing.

OpenStudy (anonymous):

Oh no worries you con do it!! there's always some big miracle at the end! and I believe in you

OpenStudy (anonymous):

Which of the following is the equation of an ellipse centered at (5,1) having a vertical minor axis of length 4 and a major axis of length 6?

OpenStudy (anonymous):

I literally had a panic attack like an hour ago. I was crying and I still feel shaky even now.

OpenStudy (anonymous):

I know the feeling, I was like this a year ago, I joined very late and had to do all overdues in 5 days but somehow I passes and will you ^_^

OpenStudy (anonymous):

I believe it's D

OpenStudy (anonymous):

our due date for the quarter was 11:59 pm but the assignments havent closed so im still working...

OpenStudy (anonymous):

Oh I see but there's still time right? and you can do it ^_^

OpenStudy (anonymous):

If you add the lengths of the focal radii of an ellipse, what other value will you produce? The length of the minor axis The length of the major axis The value of a The value of b

OpenStudy (anonymous):

yeah i can work until 8am tomorrow when they start grading

OpenStudy (anonymous):

I'd go with B

OpenStudy (anonymous):

Which of the following equations represents a degenerate ellipse? 9x^2 +4y^2 = 1 x^2 y^2 ---- + ---- = 2 14 19 x^2 y^2 ----- = (-) ---- 10 18 All of the above are degenerate ellipses.

OpenStudy (anonymous):

I can't understand the C one did you write it correct? can you take a snapshot of it?

OpenStudy (anonymous):

OpenStudy (anonymous):

My guess is A but to make sure you check too

OpenStudy (anonymous):

http://prntscr.com/2m2606

OpenStudy (anonymous):

OpenStudy (anonymous):

were the previous questions correct?

OpenStudy (anonymous):

2 and 10 were wrong. for 10, c was the correct one.

OpenStudy (anonymous):

oh sorry for the the 10th one :(

OpenStudy (anonymous):

dont be. an 80% is still pretty good

OpenStudy (anonymous):

I'm glad and for the question 1 I'm not sure but I'd go with true for the question 2 (1,-3)

OpenStudy (anonymous):

is there answer choices for 3?

OpenStudy (anonymous):

no just a big box where you show your work

OpenStudy (anonymous):

a work pad?

OpenStudy (anonymous):

looks like this

OpenStudy (anonymous):

okei I see and here's a tip whenever you see (1 point) or (2 points) meaning there's one answer needed or one sentence but if there's 2? then there's 2 sentences needed

OpenStudy (anonymous):

you can sometimes google up and you'll find some help and best of all http://www.wolframalpha.com/ it gives you any answer to any question asked

OpenStudy (anonymous):

I have to go now =( good luck on your tests?

OpenStudy (anonymous):

thank you for helping!

OpenStudy (anonymous):

you're most certainly welcome!! ^_^

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