As the question say this problem is a practice of the law of cosines!
The law of cosine: c^2=a^2+b^2-2ab*cos*c for any side a, b and c
The law can also be written as c=sqrt(a^2+b^2-2abcosc)
Now use this formula!(note cos 100 degrees is about 0.8623)
c=sqrt(15^2+16^2-2*15*16*cos100)
solving this we can MN is about 23.75
Round this to the nearest tenths now!
We get 23.8!
Thus the answer is D
I agree. There can't ever be 2 equal signs in A math problem
As a fraction it would be 388888/100000.
Answer: 0.0023
Step-by-step explanation:
230, 000 nm
10^-9
dam are 10^-1
Therefore, divide nm by 10^8
Therefore, 0.0023
I hope this helps :)
BB76
Answer:
True
Step-by-step explanation:
