S = 14-3 (s being sandras age)
Answer:
B. 21.64
Step-by-step explanation:
We have been given a triangle and we are asked to find the length of AC (b).
We will use law of cosines to find the length of side AC.
![c^{2}=a^{2}+b^{2}-2ab \text{ cos }\theta](https://tex.z-dn.net/?f=c%5E%7B2%7D%3Da%5E%7B2%7D%2Bb%5E%7B2%7D-2ab%20%5Ctext%7B%20cos%20%7D%5Ctheta)
Upon substituting our given values in the formula we will get,
Upon taking square root of both sides of our equation we will be get,
Therefore, the length of b is 21.64 and option B is the correct choice.
I think it should be x(ax +b) + c. Not sure though.
Answer:
C. 20
Step-by-step explanation:
A) is 0.83 and idk how to do b)