Seven less than twice a number is 21
1 answer:
You might be interested in
For this problem, we are going to use the <em>law of sines</em>, which states:
In this case, we have an angle and two sides, and we are trying to look for the third side. First, we have to find the angle which corresponds with the second side, . Then, we can find the third side. Using the law of sines, we can find:
We can use this to solve for :
Now, we can find :
Using this, we can find :
c is approximately 17.5.
Answer: AC=12 cm
Step-by-step explanation:
To solve this problem you must apply the law of sines, as you can see below:
Where:
a=13
A=85.2°
B=71.6°
Therefore, you must solve for b, then, you obtain that the lenght AC asked in the problem above is: