Answer:
length ≈ 0.599 feet
Step-by-step explanation:
volume = length³
0.215ft³ = length³
cube root both sides to isolate the length
∛(0.215ft³) = length
length ≈ 0.599 feet
Answer:
y = -2x + 1
Step-by-step explanation:
y = mx + b (m is the slope and b is the y-intercept)
y = mx + 1
Equation for slope: 
(0,1) (1,-1)
=
= -2
y = -2x + 1
V = π r^2 (h/3)
(Volume equals pi r squared, h over 3)
Diameter is 4, so the radius is half of that = 2
Plug in the numbers
V = π (2^2) (16/3)
V = π (4) (5.333)
V = 3.14 x 4 = 12.566
V = 12.566 x 5.333
V = 67.014