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KatRina [158]
2 years ago
5

2678 cm into feet. show working. ​

Mathematics
1 answer:
earnstyle [38]2 years ago
3 0

Answer:

87.86 feet.

Step-by-step explanation:

We know that there is 30.48 cm in 1 foot. So to find how many feet are in 2678 cm, we need to divide it by 30.48

2678 / 30.48 = 87.86

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Find the number of sides of the regular polygon when the measure of an exterior angle is given.
mario62 [17]
1.\\exterior\angle=30^\circ\\ exterior\angle=180^\circ-interior\ angle\\ interior\angle=180^\circ-exterior\ angle=180^\circ -30^\circ=150^\circ\\ \\Formula\ for\ number\ of\ sides\ of\ regular\ polygon:\\\\ interior\angle= 180^\circ-\frac{360^\circ}{n}\\ 150^\circ=180^\circ-\frac{360^\circ}{n}\\ -30^\circ=-\frac{360^\circ}{n}\ |*n\\ -30^\circ\ *n=-360^\circ \ |:-30^\circ\\ n=12\\\\ Number\ of\ sides\ is\ 12.2.\\exterior\angle=10^\circ\\ exterior\angle=180^\circ-interior\ angle\\ interior\angle=180^\circ-exterior\ angle=180^\circ -10^\circ=170^\circ\\ \\Formula\ for\ number\ of\ sides\ of\ regular\ polygon:\\\\ interior\angle= 180^\circ-\frac{360^\circ}{n}\\ 170^\circ=180^\circ-\frac{360^\circ}{n}\\ -10^\circ=-\frac{360^\circ}{n}\ |*n\\ -10^\circ\ *n=-360^\circ \ |:-10^\circ\\ n=36\\\\ Number\ of\ sides\ is\ 36.
8 0
3 years ago
Please help due in the morning
777dan777 [17]

Answer:

A=45 square inches

Step-by-step explanation:

First find the height using Trig

Tan(45)=x/6

x=6tan(45)

x=6

Then area of a parallellogram is base x height so

A=7.5 x 6

A=45 square inches

3 0
3 years ago
Can someone help me with this please <br> What is the right answer for it?
kondaur [170]
That would be 3 or 4 cm
8 0
3 years ago
Read 2 more answers
Add the product l(m-n) , m (m-n) , n(n-l)​
DochEvi [55]

Step-by-step explanation:

l(m-n)+m(m-n)+n(n-l)

lm-ln+m²-mn+n²-nl

lm-2ln+m²+n²-mn

4 0
3 years ago
The figure below shows how Ali spends his time in a day. Calculate the number of hours Ali
Elodia [21]

Answer:

 75°C = 5h

Step-by-step explanation :

1. Make sure your mind is fresh and that you understand each step before reading

2. 24 hours is equal to  360°C

3.  so now lets break up the hours. We can do this by choosing a simple degree that was given in the diagram. For example "Watching tv".

Tip : when choosing one of the degrees , ( i mean one of the choices like watching tv, playing and sleeping) , try choosing the simplest one , which has a simple number and a multiple of 360.

so now you want to know how many hours is 60 equal to .

= 360 ÷ 60 = 60   (this is to make sure the number is a multiple and will not be a decimal )

= 24 ÷ 6 = 4

this means Ali spend 4 hours watching tv

and by doubling that you get                    60°C = 4h

the amount of time he slept                     120°C = 8h

and you keep playing with the numbers like that

so for playing                                                

                                                                   60°C = 4h

                                             divide by 4    15°C =  1h

                                           × by 5             75°C = 5h

this means ali spends 5h playing , 8h sleeping, 4h watching tv and 7 h studding

3 0
2 years ago
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