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pentagon [3]
3 years ago
8

A photograph has a length that is inches longer than its width, x. So its area is given by the expression square inches. If the

area of the photograph is square inches, what is the width of the photograph?
The width of the photograph is blank inches.
Mathematics
1 answer:
ss7ja [257]3 years ago
6 0

Answer:

width is also "inches"

Step-by-step explanation:

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The area of a regular octagon is 35 cm 2 what is the area of a regular octagon with sides three times as large
Maurinko [17]
The area of a polygon = n*side^2 / (4 * tan(180/n))
where "n" is the number of sides

Let's calculate area for side = 2
area = 8*2^2 / (4 * tan(180/8))
area = 32 / (4 * tan(22.5))
area = 32 / 4*0.41421
<span> <span> <span> area = 19.3138746047 </span> </span> </span>

Now, let's calculate area for side = 6
area = 8*6^2 / (4 * tan(180/8))
area = 288 / <span> <span> <span> 1.65684 </span> </span> </span>
area = <span> <span> <span> 173.824871442 </span> </span> </span>

<span> <span> 173.824871442 </span> / </span><span><span>19.3138746047 = </span> 9

So, the area would be 9 times larger.

ALSO, looking at the formula
</span>n*side^2 / (4 * tan(180/n))
we can see that the side length appears just once in the formula and we are to square it in the calculation.  So, if we increase the side length is increased by 3, then the area increases by 3^2 or 9.


5 0
3 years ago
PLEASE HELP ASAP! Several books are placed on the bottom three shelves of a bookcase. When 1 book was taken from the first shelf
sergeinik [125]

Answer:

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Step-by-step explanation:

Initially the top shelf has no books placed on

Then books added to this:

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And now all 4 shelves have same amount of books. So total number is:

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There are 24 books in the bookcase

6 0
3 years ago
6) Allison is opening up a jewelry business. She spent $56 on supplies. After $77 in sales to customers,
liraira [26]

Answer:

1 she spent 133

2 12 yd

3 his sister is 79 meters below him

4 the temp raised by 33 degrees

5 she has 92$ in her bank account

Step-by-step explanation:

8 0
3 years ago
Apply the distributive property to produce an equivalent expression. 12 + 20​
notsponge [240]

Answer:

10 + 20 + 2

Easy, make it easy to do mentally than add the remaining

8 0
3 years ago
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xxTIMURxx [149]

Answer:

The cow's heart beats at a rate of    65  beats per minute.

Step-by-step explanation:

Pig: 225 ÷ 3 = 75, not right.

Horse: 180 ÷ 4 = 45, not right.

<u>Cow:  520 ÷ 8 = 65, correct!</u>

Dog: 540 ÷ 6 = 90, not correct.

So as we can see the cow is the right answer.

       

5 0
3 years ago
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