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melamori03 [73]
3 years ago
15

KZEKEZjneanjezajjezaeejeznjajna

Mathematics
1 answer:
Colt1911 [192]3 years ago
5 0

Answer:

what

Step-by-step explanation:

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6 0
3 years ago
Find the dimensions of the rectangle with area 256 square inches that has minimum perimeter, and then find the minimum perimeter
mezya [45]

Answer:

Dimensions: A=a\cdot b=256

Perimiter: P=2a+2b

Minimum perimeter: [16,16]

Step-by-step explanation:

This is a problem of optimization with constraints.

We can define the rectangle with two sides of size "a" and two sides of size "b".

The area of the rectangle can be defined then as:

A=a\cdot b=256

This is the constraint.

To simplify and as we have only one constraint and two variables, we can express a in function of b as:

b=\frac{256}{a}

The function we want to optimize is the diameter.

We can express the diameter as:

P=2a+2b=2a+2*\frac{256}{a}

To optimize we can derive the function and equal to zero.

dP/da=2+2\cdot (-1)\cdot\frac{256}{a^2}=0\\\\\frac{512}{a^2}=2\\\\a=\sqrt{512/2}= \sqrt {256} =16\\\\b=256/a=256/16=16

The minimum perimiter happens when both sides are of size 16 (a square).

4 0
3 years ago
If the total income generated from gasoline for AER was 408 million how much would the cost forna barrel of gasoline
Anika [276]

Answer:

kkkkk

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
One yard of the fabric costs $5. How much does she pay for all 5 pieces of fabric
solmaris [256]
Assuming a "piece of fabric" is a yard, 5x5 is $25.00.
6 0
3 years ago
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The solution of -2(x + 1) = 2(x – 1)
PIT_PIT [208]

Answer:

Step-by-step explanation:

lets eliminate the parenthesis,

-2x-2=2x-2

-4x=0

x=0

5 0
3 years ago
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