Answer:
x=12
Step-by-step explanation:
3x-6=30
plus 6 both sides
3x=36
divide 3 both sides
x=12
Let the width be : x
length : (2x - 6)
(2x - 6) (x) = 2x square - 6x
2x square - 6x = 140
2x square - 6x - 140 = 0
if you use the cross method or calculator you’ll get :
( x - 10 ) ( x + 7) = 0
x = 10 or x = -7 ( reject because negative )
so we use x = 10.
width = 10
length = 2(10) - 6 = 14
Answer:
9x + 6
Step-by-step explanation:
<u>Step 1: Distribute</u>
5x + (x + 6) + 3x
5x + x + 6 + 3x
<u>Step 2: Combine like terms</u>
5x + x + 6 + 3x
9x + 6
Answer: 9x + 6
Answer:
SAS
Step-by-step explanation:
<u>Side</u>
- Two congruent legs on each triangle
<u>Angle</u>
The vertical angle in between makes both of the angles congruent.
Answer:
Angel U=65
Step-by-step explanation:
115+x=180
x=180-115
x=65
65+50+x=180
x=180-115
x=65
angles: 50, 65,65
this triangle is isosceles
Check:
50+65+65=180
