Answer:
Step-by-step explanation:
L= 3W
Perimeter = 2(l+w) = 40
2(3w+w) = 40
2*4w = 40
8w =40
w = 5
l = 3*5 = 15
Answer:
<h2>y = 4x + 4</h2>
Step-by-step explanation:
The slope-intercept form:
![y=mx+b](https://tex.z-dn.net/?f=y%3Dmx%2Bb)
m - slope
b - y-intercept
Parallel lines have the same slope.
We have y = 4x + 2 → m = 4.
The slope of parallel line is m = 4 and the y-intercept b = 4.
Therefore we have the equation of a line:
![y=4x+4](https://tex.z-dn.net/?f=y%3D4x%2B4)
![{\color{chartreuse}{Measure\:of\: ∠\:on\: one\: side\:of\:line\:=\:180°}}](https://tex.z-dn.net/?f=%7B%5Ccolor%7Bchartreuse%7D%7BMeasure%5C%3Aof%5C%3A%20%E2%88%A0%5C%3Aon%5C%3A%20one%5C%3A%20side%5C%3Aof%5C%3Aline%5C%3A%3D%5C%3A180%C2%B0%7D%7D)
∠ Given are (x + 18)° , x° , 4x° and one Angle is 90° as per diagram
Let ,
1st∠ = (x + 18)°
2nd∠ = x°
3rd∠ = 4x°
so ,
![⟶\:x\:=\:12°](https://tex.z-dn.net/?f=%E2%9F%B6%5C%3Ax%5C%3A%3D%5C%3A12%C2%B0)
substituting x = 12 at the place of x .
= x° + 18°
= 12° + 18 °
1st∠ = 30°
__________________________________
= x°
2nd∠ = 12°
__________________________________
= 4x°
= 4(12)°
3rd∠ = 48°
f(x)=10x to the power of two +4