<h3><em>11) x+61 + x+51 + 80 = 180 ( angle sum property )</em></h3><h3><em>2x + 192 = 180 </em></h3><h3><em>2x = 180 - 192 </em></h3><h3><em>2x = -12</em></h3><h3><em>x = -12/2</em></h3><h3><em>x = -6 </em></h3><h3><em>12) x+52 + 67+x + 75 = 180 ( angle sum property )</em></h3><h3><em>2x + 194 = 180 </em></h3><h3><em>2x = 180 - 194 </em></h3><h3><em>2x = -14</em></h3><h3><em>x = -14/2 </em></h3><h3><em>x = -7 </em></h3><h2><em>HOPE IT HELPS !!!</em></h2>
A. the ability of your heart and lungs to work during prolonged exercise.
Hope this helps!:)
The person whose walk is longer is Erica.
Erica's walk is 8/9 times longer than Erica's walk.
<h3>Whose walks the longer distance?</h3>
In order to determine who walked the longer distance, we would convert the fractions to percentages.
3/4 becomes 75%
2/3 becomes 66.7%
Erica's percentage is smaller, thus, she walks a longer distance.
Jordan's walk is 8/9 times longer
(2/3 ÷3/4) (2/3 x 4/3 = 8/9)
To learn more about percentages, please check: brainly.com/question/25764815
I just had a test on vectors so I feel your pain! Explained in the picture above. Hope it helps C:
Edit: in picture I say tantheta = x/y sorry I meant y/x
Answer:
The answer is

Step-by-step explanation:
5x² + 9x + 2 = 0
Using the quadratic formula that's

From the question
a = 5 , b = 9 , c = 2
We have

We have the final answer as

Hope this helps you