Finding x,
We will use Pythagoras theorem to determine the value of x:
![9^{2} = {8}^{2} + {x}^{2} \\ 81 = 64 + {x}^{2} \\ 81 - 64 = {x}^{2} \\ {x}^{2} = 17 \\ x = \sqrt{17}](https://tex.z-dn.net/?f=9%5E%7B2%7D%20%20%3D%20%20%7B8%7D%5E%7B2%7D%20%20%2B%20%20%7Bx%7D%5E%7B2%7D%20%20%5C%5C%2081%20%3D%2064%20%2B%20%20%7Bx%7D%5E%7B2%7D%20%20%5C%5C%2081%20-%2064%20%3D%20%20%7Bx%7D%5E%7B2%7D%20%20%5C%5C%20%20%7Bx%7D%5E%7B2%7D%20%20%3D%2017%20%5C%5C%20x%20%3D%20%20%5Csqrt%7B17%7D%20)
Finding y,
We have to determine the angle, at the bottom left of the bigger triangle.
Using sine rule,
![\frac{9}{sin(90)} = \frac{8}{sin(z)} \\ sin(z) = 0.8889 \\ z = {sin}^{ - 1} (0.8889) \\ z = 62.73](https://tex.z-dn.net/?f=%20%5Cfrac%7B9%7D%7Bsin%2890%29%7D%20%20%3D%20%20%5Cfrac%7B8%7D%7Bsin%28z%29%7D%20%20%5C%5C%20sin%28z%29%20%3D%200.8889%20%5C%5C%20z%20%3D%20%20%7Bsin%7D%5E%7B%20-%201%7D%20%280.8889%29%20%5C%5C%20z%20%20%3D%20%2062.73)
To find the angle on the smaller triangle,
![a = 90 - 62.73 \\ a = 27.27](https://tex.z-dn.net/?f=a%20%20%3D%2090%20-%2062.73%20%5C%5C%20a%20%3D%2027.27)
Finding the missing length of y,
![\frac{ \sqrt{17} }{sin(62.73)} = \frac{m}{sin(27.27)} \\ m = 2](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%5Csqrt%7B17%7D%20%7D%7Bsin%2862.73%29%7D%20%20%3D%20%20%5Cfrac%7Bm%7D%7Bsin%2827.27%29%7D%20%20%5C%5C%20m%20%3D%202)
So y = 2 + 8, y = 10
Answer:
4
Step-by-step explanation:
so you start with the number -2 and than you add 6 because your multiplying the 2 subtraction symbols to get a positive so your answer would be 4
Answer:
x=10
Step-by-step explanation:
set it up and solve
2x-1=x+9
2x=x+10
x=10
Answer:
X=1/2
Step-by-step explanation:
-2x1/2=-1
-2x1=-2
-1+-2=-3
Answer:
I dont know but when u got the answer tell me