Hey mate ,
The Answer is Zero
Hope it helped !
1 answer
weight of karen = k
weight of john = j
by the question
j=3k
then
case II
2j +k =875
2×3k+k=875
7k = 875
k=875/7
k=125
now
j=3k
=3×125
=375
hence john was 375 pound and karen was 125.
2 answer
let Mary be m and joes be j
by question
M=3J
CASE II
M + J=24
3J +J =24
J =24/4
J=6
NOW
M=3×6
M=18
Therefore Mary was 18 yrs old and Joes was 6 yrs old.
Given end points of diameter,
(x1,y1)=(-3,-4)
(x2,y2)=(0,0)
Now,
the equation of circle is,
(x-x1)(x-x2)+(y-y1)(y-y2)=0
or, (x+3)(x-0)+(y+4)(y-0)=0
or, x^2 +3x +y^2 +4y =0
or, x^2 +y^2 +3x + 4y=0
which is in the form of x^2 +y^2 +2gx +2fy + c=0
where,
g=3/2
h=2
c=0
Now,
![radius(r) = \sqrt{ {g}^{2} + {f}^{2} - c } \\ = \sqrt{ \frac{ {3}^{2} }{ {2}^{2} } + {2}^{2} - 0 } \\ = \sqrt{ \frac{9}{4} + 4} \\ = \sqrt{ \frac{25}{4} } \\ = \frac{5}{2}](https://tex.z-dn.net/?f=radius%28r%29%20%3D%20%20%5Csqrt%7B%20%7Bg%7D%5E%7B2%7D%20%20%2B%20%20%7Bf%7D%5E%7B2%7D%20-%20c%20%20%7D%20%5C%5C%20%20%3D%20%20%5Csqrt%7B%20%5Cfrac%7B%20%7B3%7D%5E%7B2%7D%20%7D%7B%20%7B2%7D%5E%7B2%7D%20%7D%20%2B%20%20%7B2%7D%5E%7B2%7D%20%20-%200%20%7D%20%20%5C%5C%20%20%3D%20%20%5Csqrt%7B%20%5Cfrac%7B9%7D%7B4%7D%20%20%2B%204%7D%20%20%5C%5C%20%20%3D%20%20%20%5Csqrt%7B%20%5Cfrac%7B25%7D%7B4%7D%20%7D%20%20%5C%5C%20%20%3D%20%20%5Cfrac%7B5%7D%7B2%7D%20)
Ibdthdefbhjj gfdecadhj Jinny
<u>Answer:</u>
<h2>d ≈ 7.07</h2>
<u>Steps:</u>
d = √( (3-(-2))² + (-1-4)² )
d = √( (3+2)² + (-1-4)² )
d = √( 5² + (-5)² )
d = √( 25 + 25 )
d = √50
<h2>d ≈ 7.07</h2>