Answer:
3.5%
Step-by-step explanation:
The volume of a cylinder =
<em>r</em> = radius of cylinder,
<em>h</em> = height of cylinder
For the non-optimal can,
<em>r</em> = 2.75/2 = 1.375
<em>h</em> = 5.0
<em />
For the optimal can,
<em>d</em>/<em>h</em> = 1,
<em>d</em> = <em>h</em>
2<em>r </em>=<em> h</em>
<em>r</em> = h/2
They have the same volume.
<em /><em />
(This is the height of the optimal can)
(This is the radius of the optimal can)
The area of a cylinder is
<em /><em />
For the non-optimal can,
For the optimal can,
Amount of aluminum saved, as a percentage of the amount used to make the optimal cans =
Y(-2) = 3 (x - 4)
Y = 3 (-2 - 4)
Y = 6 + 12
Y= 18
Answer:
Step-by-step explanation:
<u>We know that:</u>
- Perimeter of a rectangle = Sum of all its sides
- Length of rectangle = 4x² - x + 2
- Width of rectangle = 5x - 3
To find the perimeter, we need to use the equation "Perimeter of a rectangle = Sum of all its sides".
<u>Solution:</u>
- Perimeter of a rectangle = Sum of all its sides
- => 2[{4x² - x + 2} + {5x - 3}] = Perimeter
- => 2[4x² - x + 2 + 5x - 3] = Perimeter
- => 2[4x² + {-x + 5x} + {2 - 3}]
- => 2[4x² + 4x - 1]
- => 8x² + 8x - 2
Hence, the perimeter of the rectangle is 8x² + 8x - 2.
Answer:put two triangles in the first three squares in the second and four triangles and two squares in the thrif
Step-by-step explanation:
-1.76
Since the solution needs to be a number less than or equal to -2, you need to find a number that is closer to 0 than -2. The answer can not be -2 as it is equal to -2, and cannot be -8/-2.45 as it is a greater distance to 0.
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