the answer would be 10/21
Answer:
um ok i do not know
Step-by-step explanation:
Answer:
z to the 10th power
Step-by-step explanation:
Answer: x = - 16
y = - 11
Step-by-step explanation:
The given system of linear equations is expressed as
2x - 3y = 1- - - - - - - - - - - - -1
x - 2y = 6 - - - - - - - - - - - -2
We would eliminate x by multiplying equation 1 by 1 and equation 2 by 2. It becomes
2x - 3y = 1- - - - - - - - - - -3
2x - 4y = 12- - - - - - - - - - - -4
Subtracting equation 4 from equation 3, it becomes
y = - 11
Substituting y = - 11 into equation 2, it becomes
x - 2 × - 11 = 6
x + 22 = 6
Subtracting 22 from the left hand side and the right hand side of the equation, it becomes
x + 22 - 22 = 6 - 22
x = - 16
Given
, and
, then:
![cos\theta=\frac{2\sqrt{6} }{5}](https://tex.z-dn.net/?f=cos%5Ctheta%3D%5Cfrac%7B2%5Csqrt%7B6%7D%20%7D%7B5%7D)
<h3> Computations on trigonometric identities</h3>
From the details provided:
![sin (\theta) = \frac{1}{5}\ \\\\tan \theta = \frac{\sqrt{6} }{12} \times \frac{\sqrt{6} }{\sqrt{6} }\\\\tan \theta = \frac{\sqrt{6} \times \sqrt{6} }{12 \times \sqrt{6} }\\\\tan \theta =\frac{1}{2\sqrt{6} }](https://tex.z-dn.net/?f=sin%20%28%5Ctheta%29%20%3D%20%5Cfrac%7B1%7D%7B5%7D%5C%20%5C%5C%5C%5Ctan%20%5Ctheta%20%3D%20%5Cfrac%7B%5Csqrt%7B6%7D%20%7D%7B12%7D%20%5Ctimes%20%5Cfrac%7B%5Csqrt%7B6%7D%20%7D%7B%5Csqrt%7B6%7D%20%7D%5C%5C%5C%5Ctan%20%5Ctheta%20%3D%20%5Cfrac%7B%5Csqrt%7B6%7D%20%5Ctimes%20%5Csqrt%7B6%7D%20%7D%7B12%20%5Ctimes%20%5Csqrt%7B6%7D%20%7D%5C%5C%5C%5Ctan%20%5Ctheta%20%3D%5Cfrac%7B1%7D%7B2%5Csqrt%7B6%7D%20%7D)
From the relationship above:
Opposite = 1
Adjacent = ![2\sqrt{6}](https://tex.z-dn.net/?f=2%5Csqrt%7B6%7D)
Hypotenuse = 5
![cos\theta=\frac{Adjacent}{Hypotenuse} \\\\cos\theta=\frac{2\sqrt{6} }{5}](https://tex.z-dn.net/?f=cos%5Ctheta%3D%5Cfrac%7BAdjacent%7D%7BHypotenuse%7D%20%5C%5C%5C%5Ccos%5Ctheta%3D%5Cfrac%7B2%5Csqrt%7B6%7D%20%7D%7B5%7D)
Learn more on trigonometry here: brainly.com/question/20519838