Answer:
-2/3
Step-by-step explanation:
We are trying to find the slope given two points
m = ( y2-y1)/(x2-x1)
= ( -1-3)/( 2- -4)
= ( -1-3)/( 2+4)
-4/6
-2/3
Answer
x=-4/5
Step-by-step explanation:
Let the number be x
6+5x=2
5x=2-6
5x=-4
x=-4/5
9514 1404 393
Answer:
y = 15x
Step-by-step explanation:
You can identify the slope (constant of proportionality) by finding y when x = 1. That value is 15. It goes into the equation as the coefficient of x.
y = 15x
Answer:
Step-by-step explanation:
From the picture we find that the sphere and the cylinder has equal heights.
i.e. cylinder has height = 2r.
x,y and r form a right triangle with hypotenuse as r.
Hence pythagorean theorem is satisfied
Area of the cross section parallel to it is area of circle with radius y
= 
Volume of cylinder when 2 cones removed = 
Hence volume of sphere = 