Answer:
6.7
Step-by-step explanation:
Here, we can apply cosine law, 
We the plug in values: 
and solve that CB is around 6.7
Pretty sure its 2cm i worked it out
Answer:
here is your answer........
Okay here’s an example:
10 divided by -5
You can do -5 times what equals 10? And count by 5 to 10, (5, 10)
Only 2 numbers here
So the answer is positive 2.
10 divided by -5= 2
Answer:
5^16
Step-by-step explanation:
25^9 + 5^17
Replace 25 with 5^2
5^2^9 + 5^17
We know that a^b^c = a^(b*c)
5^(2*9)+ 5^17
5^18+ 5^17
We can factor out 5^17
5^17 (5+1)
5^17(6)
But we need 30 so I need one more 5 inside 5^17 = 5^16 *5
5^16 *5 *6
5^16(30)