Step-by-step explanation:
Nickels = 112 * 3 / (3 + 4 + 7) = 24.
The First one is the answer.
So to find the volume of a sphere you do 4/3 x pi x radius squared
So you would do 4/3 x pi x 6 = 25.13274123
The answer would be D. y=-2x+8
Sin 2x - sin 4x = 0
sin 2x - 2sin 2x cos 2x = 0
sin x(1 - 2cos 2x) = 0
sin x = 0 or 1 - 2cos 2x = 0
sin x = 0 or 2cos 2x = 1
sin x = 0 or cos 2x = 1/2
x = arc sin 0 or 2x = arc cos (1/2)
x = arc sin 0 or x = 1/2 arc cos (1/2)
x = 0, π, 2π or x = π/6, 7π/6
