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EleoNora [17]
3 years ago
8

seth practice piano for 1 1/3 hours on Saturday and 5/6 hour on Sunday for much longer did he practice on Saturday than on Sunda

y?
Mathematics
1 answer:
Levart [38]3 years ago
3 0
17/3 more hrs on Saturday than on Sunday
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2a+4(7+5a)

Distribute 4 into 7 and 5a

2a+28+20a

Combine like terms

Final Answer: 22a+28

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If a square has a length of 3x-y, what is its area?
SVEN [57.7K]

Answer:

  9x² -6xy +y²

Step-by-step explanation:

The square of the binomial can be written directly using the relationship ...

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3 years ago
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aliina [53]

Answer:

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<u>1) Find the perimeter around the semi-circle</u>

To do this, we find the circumference of the circle using the given diameter:

C=\pi d where d is the diameter

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C=\pi (6)\\C=6\pi

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Therefore, the perimeter around the semi-circle is 3π units.

<u>2) Find the perimeter around the rest of the shape</u>

Although it's impossible to determine the lengths of the varied sides on the right side of the shape, we know that all of those <em>vertical</em> sides facing the right add up to 6. We also know that all of those <em>horizontal </em>sides facing up add up to 7. Please refer to the attached images.

Therefore, we add the following:

7+6+7

= 20

Therefore, the perimeter around that area of the shape is 20 units.

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20+3\pi \\= 20+9.42\\= 29.42

Therefore, the perimeter of the shape is approximately 29.42 units.

I hope this helps!

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