The formula to find the circumference of a circle given the information we know (the diameter), you could use the circumference formula of c=pi*diameter or:
c=3.14 * 4
c=12.56 is the circumference IF THE CIRCLE WAS WHOLE, but since we're working with a semicircle (and in this case, what looks to be exactly 1/2 of a circle), you could divide 12.56 by 2 and come up with 6.28 as the circumference of each of the semicircles.
8/13 IS THE ANSWER TO YOUR QUESTION
Answer:
C
Step-by-step explanation:
Hope it helps!
Answer:
The volume of the ornament is 
Step-by-step explanation:
we know that
The volume of the ornament is equal to the sum of the volume of the two congruent square pyramids
so
![V=2[\frac{1}{3}b^{2} h]](https://tex.z-dn.net/?f=V%3D2%5B%5Cfrac%7B1%7D%7B3%7Db%5E%7B2%7D%20h%5D)
we have
substitute
![V=2[\frac{1}{3}(2)^{2} (2.5)]](https://tex.z-dn.net/?f=V%3D2%5B%5Cfrac%7B1%7D%7B3%7D%282%29%5E%7B2%7D%20%282.5%29%5D)
Convert to mixed number
Answer:8x+4w
Step-by-step explanation:
So the question is
3x+4w+7x-2x
We take the variables that are the same which are
3x
7x
-2x
We add all of these together
3x+7x+(-2x)=8x
8x is our answer, so we take 8x and add 4w to it
8x+4w
This is the final answer, because there is nothing else left to do
