You’re trying to find x which is the side opposite to the angle. You’re given the adjacent angle. To find the variable, you use tangent. So you plug in tan(x)= opposite/adjacent. In this case it would be tan(27)=x/15. Then you multiply both sides by 15 to be 15(tan(27))=x which is 7.6=x
Answer:
13.9 sorry if I'm wrong just trying to help.
Step-by-step explanation:
first plug in your numbers
a*2+ b*2= c*2
12*12= 144
7*7=49
144+49= 193
square root of 193: 13.89244399
rounded to nearest tenth is 13.9
Lets draw our triangle:
Lets use the "Law of Sines" to find our side r:

So r=18
20. it is in the tens place
ANSWER
C. 210
EXPLANATION
The given binomial expression is

Comparing to the general binomial expression,

we have

Since we want to find the coefficient of


Using the binomial theorem, the coefficient is

The correct choice is C.