Warning: This might be rough...
First draw it out. Label the angles at the corners of the triangle 60 (definition of equilateral triangles). Now draw a line from the center of the circle to the corner, splitting the corner in half. Label this line R and a corner as 30 degrees. No to find the height of this triangle, you do rsin(30). The base of this triangle is 2rcos(30). Now find the area of this mini triangle (rsin(30)*2rcos(30)/2=r/2*rsqrt(3)/2=r^2sqrt(3)/4). Now multiply this by 3 because you have 3 mini triangles... to get...
<span>r^2 3sqrt(3)/4</span>
Answer:
There is 1 possible combination
Step-by-step explanation:
There are 5 assignments and they must be completed. 5. We want to find the number of combinations, then we use the formula of combinations.
![nCr =\frac{n!}{r!(n-r)!}](https://tex.z-dn.net/?f=nCr%20%3D%5Cfrac%7Bn%21%7D%7Br%21%28n-r%29%21%7D)
Where n is the total number of objects and you choose r from them
Then
![n= 5\\\\r = 5](https://tex.z-dn.net/?f=n%3D%205%5C%5C%5C%5Cr%20%3D%205)
![5C5 =\frac{5!}{5!(5-5)!}](https://tex.z-dn.net/?f=5C5%20%3D%5Cfrac%7B5%21%7D%7B5%21%285-5%29%21%7D)
![5C5 =\frac{5!}{5!(0)!}](https://tex.z-dn.net/?f=5C5%20%3D%5Cfrac%7B5%21%7D%7B5%21%280%29%21%7D)
![5C5 =\frac{5!}{5!}](https://tex.z-dn.net/?f=5C5%20%3D%5Cfrac%7B5%21%7D%7B5%21%7D)
![5C5 =1](https://tex.z-dn.net/?f=5C5%20%3D1)
The overall temperature would be 3.6°F as this is how much it was changed by
Answer=3.6°F
Answer:
b
Step-by-step explanation:
Answer:
the answer would be 2x^2-4x