Answer:
(6, 2.5 )
Step-by-step explanation:
Given y varies inversely as x then the equation relating them is
y = 
← k is the constant of variation
To find k substitute the coordinate point (5, 3 ) into the equation, that is
3 = 
( multiply both sides by 5 )
15 = k
y = 
← equation of variation
Using (x, 2.5 ) with y = 2.5 , then
2.5 = ( multiply both sides by x )
2.5x = 15 ( divide both sides by 2.5 )
x = 6
Thus point is (6, 2.5 )
I'm guessing 1 and 4, but I'm not sure.
(a-b)^2 = a^2-2ab+b^2
(8-5i)^2 = 8^2-2(8)(5i)+(5i)^2
= 64-80i+25i^2
i^2=-1
So
= 64-80i+25(-1)
=64-25-80i
= <em><u>39 - 80i</u></em>
which is your answer :)
Answer:
(-3, -5) This is my answer I hope it helps
This is volume of a sphere.
