It’s a 90 degree angle. You can tell be the little square box. :)
(4,1) should be idk im kinda dumb so....lol
Refer to the diagram shown below.
In spherical coordinates,
r² = x² + y² + z²
x = r sinφ cos θ
y = r sinφ sin θ
z = r cosφ
The element of volume is
dV = r² sinφ dr dθ dφ
Therefore, for the sphere with radius = 3,
The integration yields
Answer: 1250π
The formula to find slope it (y2-y1)/(x2-x1)
(2,4) is the first point
(6,2) is the second point
(2-4)/(6-2)
-2/4 which can be simplified to -1/2
Hope this helps
30% of 10 is 3 so brand B has 13 cups of cereal