Answer:
Step-by-step explanation:
![\dfrac 12 \left[\sin(a+b)+\sin(a-b) \right]\\\\\\=\dfrac 12\left[ 2 \sin a \cos b\right]\\\\\\=\sin a \cos b](https://tex.z-dn.net/?f=%5Cdfrac%2012%20%5Cleft%5B%5Csin%28a%2Bb%29%2B%5Csin%28a-b%29%20%5Cright%5D%5C%5C%5C%5C%5C%5C%3D%5Cdfrac%2012%5Cleft%5B%202%20%5Csin%20a%20%5Ccos%20b%5Cright%5D%5C%5C%5C%5C%5C%5C%3D%5Csin%20a%20%5Ccos%20b)
The measure of angle FHG = 42 degrees. This is the same as the arc length.
The measure of angle FEG = 21 degrees. This is half the value of the arc length.
Answer:
1:18
Step-by-step explanation:
54/3 = 18 3/3 = 1
18 to 1
18:1
1:18
<h3>
Answer: 104</h3>
Explanation:
Convert the given fraction to decimal form 8/25 = 0.32
Then multiply it with the school population 0.32*325 = 104
We expect about 104 students walk to school
Note how 104/325 = 0.32, so 104/325 = 8/25
