Answer:
8
Step-by-step explanation:
∠1 = (6x + 2)° (vertically opposite angles are equal)
15x + 10° +∠1 = 180° (co-interior angles are equal)
15x + 10° + 6x + 2° = 180°
15x + 6x + 10° + 2° = 180°
21x + 12° = 180°
21x = 180° - 12°
21x = 168°
x = 168/21
x = 8
hope u understood!
Answer:
The answer would be 3.
Step-by-step explanation:
-2x= -6-x+3 First you would add the x to each side. Then you are left with..
-x= -6+3 Now add 3 to -6
-x= -3 Now to get rid of the negative sign on the x, divide each side by -1.
x=3 That would be your final answer.
To Check Your Work, plug in 3 to the two x in the original equation, and see if you will get a true statement.
-2x=-6-x+3
-2(3)= -6-3+3 The threes would cancel out because -3+3=0
-6 = -6 This is a true statement so that means x=3 is the correct answer
Value of cos(x+π) =
Given cosine of x =
i.e., cos(x) =
Also cos() = . So x = .
We need to find cos(x+π) = cos().
But its value is not easy to find. So we use trigonometric formulas.
We have the trigonometric formula, cos (x+π) = - cos(x) = - =
Cos(x+π) lies in the 3rd quadrant. So there cosine has negative values. That is why, cos (x+π) = - cos(x).
Learn more about Cos(x+π) trigonometric formula at brainly.com/question/12243383
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With what did you send puc
Answer:
that looks really hard
Step-by-step explanation: