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Solve:

x2 + y2 = 100
y2 = x+10


(I couldn't make the 2's to squares, so pretend the 2's after the variables are squares. EX: x2 = x sqaured.)

Caution: there are more than one solution. Name them all. (Hint: they're three, and they are in ordered pairs.)

Solve this one and I'll tell you a vital piece of the Secret of Reality.

2007-05-26 06:47:07 · 9 answers · asked by Angel_Wolf 2 in Science & Mathematics Mathematics

9 answers

x^2+x+10=100
x^2+x-90 = 0
(x+10)(x-9) = 0
So x = 9 and x = -10
When x = -10, y =0
When x = 9, y = +/- sqrt(100-81)=sqrt(19)
Thus the three solutions are;
(-10, 0), (9, sqrt(19)), and (9, -sqrt(19))

This is the intersection of a circle and a parabola where the vertex of the parabola is tangent to the circle at (-10,0).

2007-05-26 07:07:26 · answer #1 · answered by ironduke8159 7 · 0 0

x2 + x + 10 = 100
x2 + x - 90 = 0
(x + 10) * (x - 9) = 0

y2 = x + 10 -->

y2 = 19
or
y2 = 0

x = 9, y = sqrt(19)
x = 9, y = -sqrt(19)
x = -10, y = 0
.

2007-05-26 06:50:52 · answer #2 · answered by tom_2727 5 · 0 0

From the given equation x= x(16x-a million) if x = 0. equation is happy & consequently x= 0 is a answer. if x no longer equivalent to 0, then cancelling x on the two part a million= sixteen x-a million or 16x = 2 x = 2/sixteen = a million/8

2016-12-18 04:59:00 · answer #3 · answered by ? 4 · 0 0

x^2 + x + 10 = 100

x^2 + x - 90 = 100

x = [-1 +/- sqrt(1-4*1*-90)]/2 = (-1 +/- sqrt 361)/2 = (-1 +/- 19)/2

= -10 or 9

(-10, 0) (9, sqrt 19) (9, -sqrt 19)

2007-05-26 07:00:54 · answer #4 · answered by jenh42002 7 · 0 0

x2 +y2=100
y2=x+10

so x2+x+10=100
or,x2+x-90=0
or,x2+10x-9x-90=0
or,x(x+10)-9(x+10)=0
or,(x+10)(x-9)=0

so either x= -10
or,x=9
and y=either {100-(-10^2)
=0
or y=(100-9^2)
=19^0.5.

Hope it'll help u.

2007-05-26 07:07:09 · answer #5 · answered by Amites C 1 · 0 0

first pair: x=9, y=4.35889894354
Second Piar: x=9, y=-4.35889894354
Third Pair: x=-10, y=0

Anything else you need help with?

2007-05-26 07:02:38 · answer #6 · answered by Tron 2 · 0 0

x = -10,+9

y=0,+/-4.358

2007-05-26 06:57:49 · answer #7 · answered by arjun_tva 2 · 0 0

Dream on. And a good week-end to you.

2007-05-26 06:51:22 · answer #8 · answered by Michael A 6 · 1 1

Huh?

2007-05-26 06:49:36 · answer #9 · answered by xinnybuxlrie 5 · 0 1

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