2 years ago

For what value of x is line a parallel to line b? x = ____

1 answer:

5 0

I’m going to assume you meant “what is the value of x” and “line A is parallel to line B”

Because they are parallel, the equation and 80 degrees are the same, so:

2x+20=80

Now just solve for x

2x+20=80
-20 -20

2x=60
— —
2 2

X=30

You might be interested in

9x -1 = 80<br> A -10<br> B 9<br> C 10<br> D -9

Fittoniya [83]

Answer:

The answer is B!

Step-by-step explanation:

Add 1 to both sides, then divide 80 by 9!

5 0

2 years ago

Look at triangle ABC. What is the length of said AB of the triangle

Nuetrik [128]

$\bf ~~~~~~~~~~~~\textit{distance between 2 points}
\\\\
A(\stackrel{x_1}{4}~,~\stackrel{y_1}{5})\qquad 
B(\stackrel{x_2}{1}~,~\stackrel{y_2}{2})\qquad \qquad 
% distance value
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
AB=\sqrt{(1-4)^2+(2-5)^2}\implies AB=\sqrt{(-3)^2+(-3)^2}
\\\\\\
AB=\sqrt{9+9}\implies \boxed{AB=\sqrt{18}}\implies AB=\sqrt{2(9)}
\\\\\\
AB=\sqrt{2(3^2)}\implies \implies AB=3\sqrt{2}$