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givi [52]
3 years ago
5

Im soooo confused can someone explain what I'm supposed to do?

Mathematics
1 answer:
Trava [24]3 years ago
8 0
The area for a regular decagon is a bit complicated to type out, but a quick google search "decagon formula" should bring it up.

its like A= (5/2) a^2 sqrt(5+2*sqrt(5)) so yeah just google that and plug the values that they gave you in

i got 1107.97~

the perimeter is P = 10a where a is the side length. in this case it is 12. so the perimeter is 10*(12) which is 120cm.


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Please help me people thank you in advance
scZoUnD [109]

Answer:

-\dfrac{11}{12}

Step-by-step explanation:

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Hope this helps!

8 0
3 years ago
1/2 X 2/3 multiply fraction
kicyunya [14]

Answer:

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Step-by-step explanation:

7 0
3 years ago
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12/15 and 24/30 equivalent fractions
Anton [14]

Answer:

12/15 and 24/30 are equivalent fractions

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3 years ago
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gregori [183]
Hi there!

In order to dilate a figure by 4, we'll need to multiply both the x and the y coordinates by 4. This makes the figure 4 times bigger. Doing this gives us the coordinates (8,12).

Hope this helps!! :)
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6 0
3 years ago
What value of x makes this equation true?
Rus_ich [418]

Answer:

B. -44

Step-by-step explanation:

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first subtract 0.3x to the other side of 0.8x which will equal

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Then subtract 15 to the othe side of the equal sign which will be

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Then divide both sides of 0.5( use calculator and put in -22/0.5)

which will be -44

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