Two and four will work. Just plug in the numbers to see
3x-12y = 5
-x+3y = 9
First step is to make the coefficient of either x or y same.
3x-12y = 5
(-x+3y = 9)3
3x-12y = 5
-3x+9y = 27
-4y = 32
y = -8
Answer:
Option D. No solutions
Step-by-step explanation:
we have
-----> equation A
----> equation B
Multiply by -3 both sides equation A
-----> equation C
Compare equation B and equation C
Equation B and equation C are parallel lines with different y-intercept
<u><em>Verify</em></u>
For x=0
<em>Equation C</em>
----->
The y-intercept is the point (0,0.5)
Equation B
----->
The y-intercept is the point (0,-0.5)
therefore
Lines do not intersect
The system has no solution
see the attached figure to better understand the problem
Answer:
the answer is 4
Step-by-step explanation:
By using the concepts of <em>direct</em> and <em>inverse trigonometric</em> expressions, the angles that represents the <em>trigonometric</em> function cos 5/6 are θ₁ ≈ 33.557° and θ₂ ≈ 326.443°.
<h3>How to determine the possible angles of a given trigonometric relationship</h3>
Cosine are <em>trigonometric</em> functions whose period is 360°. Cosine is <em>positive</em> both for the <em>first</em> and <em>fourth</em> quadrants. Thus, the two angles associated to the given <em>trigonometric</em> expression are by inverse <em>trigonometric</em> functions:
θ₁ ≈ 33.557°, θ₂ ≈ 326.443°
To learn more on trigonometric functions: brainly.com/question/14746686
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