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My name is Ann [436]
3 years ago
6

You have 80 pieces of fabric to make a wall hanging. Each piece of fabric is a square with a side length of 5 inches. You use as

many pieces of fabric as possible to create a square wall hanging.
What is the area of the wall hanging?


How many pieces of fabric are left over?

How many more pieces of fabric would you need to increase the size of the wall hanging?
Mathematics
2 answers:
ahrayia [7]3 years ago
8 0
The are would be 25

and we could make 3 squares. 75

5inches will be left over.
Nata [24]3 years ago
5 0

400 is the answer to the problem


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Answer:

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Step-by-step explanation:

(a) when i = 2, the expected number of played games will be:

E(X) = 2[p² + (1-p)²] + 3[2p² (1-p) + 2p(1-p)²] = 2[p²+1-2p+p²] + 3[2p²-2p³+2p(1-2p+p²)] = 2[2p²-2p+1] + 3[2p² - 2p³+2p-4p²+2p³] =  4p²-4p+2-6p²+6p = -2p²+2p+2.

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d²/dp² E(X) = d/dp (-4p + 2) = -4 which is less than 0. Therefore, the E(X) is maximized.

(b) when i = 3;

E(X) = 3[p³ + (1-p)³] + 4[3p³(1-p) + 3p(1-p)³] + 5[6p³(1-p)² + 6p²(1-p)³]

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