Answer:
5 units
Step-by-step explanation:
±√(- 2 - 1)^2 + (- 1 - 3)^2 = ±5 (rej - 5 since distance > 0)
Apply distance formula
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L = 2 W
B = L x W = 2 W²
Side Area = 2 W H + 2 L H = 2 H ( W + L ) = 6 H W
V = 2 W² H = 10
H = 5 / W²
Cost = 15 * 2 W² + 9 * 5/W
= 30 W² + 270/ W
C ` = 60 W - 270 / W²
= ( 60 W² - 270 ) / W² = 0
60 W² = 270
W ² = 270 : 60
W² = 4.5
W = √ 4.5 = 2.12
Cost (min) = 15 * 2 * 4.5 + 30 / 2.12 = 135 + 14.15 = $149.15
Answer: The cost of materials for the cheapest such container is $149.15.
Answer:
D
Step-by-step explanation:
The line of symmetry is at (-1, 9).
Answer:
x = 4 1/2
Step-by-step explanation:
To get to minus 1/2 from plus 2 you would subtract 2 1/2 from 2.
To arrive at x you would add 2 1/2 to 2.
The result is a progression of: 4 1/2, 2, - 1/2
(4 1/2 minus 2 1/2 = 2; 2 minus 2 1/2 = - 1/2)
