Answer:
Diameter of the can = 18 Cm
Step-by-step explanation:
Given:
Curved surface of cylindrical can = 162
Height of cylindrical can = 9 Cm
Find:
Diameter of the can = ?
Computation:
Curved surface of cylindrical can = 2rh
Diameter of the can = 2×r
Diameter of the can = 2×9 Cm
Diameter of the can = 18 Cm
Here are your answers you are looking for.
Answer:
slope = - 
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - x + 
← is in slope- intercept form
with slope m = -
• Parallel lines have equal slopes, hence
Slope of a parallel line = -
Answer:
w = w L = 2w h = h
Volume: V = Lwh
10 = (2w)(w)(h)
10 = 2hw^2
h = 5/w^2
Cost: C(w) = 10(Lw) + 2[6(hw)] + 2[6(hL)])
= 10(2w^2) + 2(6(hw)) + 2(6(h)(2w)
= 20w^2 + 2[6w(5/w^2)] + 2[12w(5/w^2)]
= 20w^2 + 60/w + 120/w
= 20 w^2 + 180w^(-1)
C'(w) = 40w - 180w^(-2)
Critical numbers:
(40w^3 - 180)/w^2 = 0
40w^3 -180 = 0
40w^3 = 180
w^3 = 9/2
w = 1.65 m
L = 3.30 m
h = 1.84 m
Cost: C = 10(Lw) + 2[6(hw)] + 2[6(hL)])
= 10(3.30)(1.65) + 2[6(1.84)(1.65)] + 2[6(1.84)(3.30)])
= $165.75 cheapest cost
Step-by-step explanation:
