Answer:
D) 9
Step-by-step explanation:
Using proportions, we have
12/2 = 54/x
Cross multiplying, we have
12(x) = 2(54)
12x = 108
Divide both sides by 12:
12x/12 = 108/12
x = 9
The value of equation when n = 3 is 50
<em><u>Solution:</u></em>
<em><u>Given equation is:</u></em>

We have to find the value of equation when n = 3
By plugging in n = 3 in given equation we can find the value of given equation
<em><u>Substitute n = 3 in given equation</u></em>

Thus the value of equation when n = 3 is 50
Answer:
<h2>
x=√30</h2>
Given,
CB=X
CD=3
CA=3+7=10
HERE,

Hope this helps...
Good luck on your assignment..