Answer:
A = 125º
Step-by-step explanation:
Missing angle is the supplement of 157.5
180 - 157.5 = 22.5
----------------------------
Sum of angles in triangle is 180
22.5 + (-10x) + (-x + 20) = 180
Combine like terms
-11x + 42.5 = 180
Subtract 42.5 from both sides
-11x = 137.5
Divide both sides by -11
x = -12.5
---------------------------
A = -10(-12.5)
A = 125º
G(X)=6X-3
Y=6X-3
X=6Y-3
X+3=6Y
Y=(X+3)/6
G^-1(9)=(X+3)/6
G^-1(9)=(9+3)/6
G^-1(9)=2
Step-by-step explanation:
<u>Formula</u><u> </u><u>U</u><u>s</u><u>e</u><u>d</u>
<u>By distance formula,</u>
- d (A,B)=√[(x₁ - x₂)² + (y₁ - y₂)²]
![\sf \longmapsto \: D = √(x2-x1)²+(y2-y1)²](https://tex.z-dn.net/?f=%20%5Csf%20%5Clongmapsto%20%5C%3A%20D%20%3D%20%E2%88%9A%28x2-x1%29%C2%B2%2B%28y2-y1%29%C2%B2)
![\sf \longmapsto= √(9+5)²+(2-2)²](https://tex.z-dn.net/?f=%20%5Csf%20%5Clongmapsto%3D%20%E2%88%9A%289%2B5%29%C2%B2%2B%282-2%29%C2%B2)
![\sf \longmapsto= = √14²+09](https://tex.z-dn.net/?f=%20%5Csf%20%5Clongmapsto%3D%20%3D%20%E2%88%9A14%C2%B2%2B09)
![\sf \red \longmapsto \boxed{= 14}](https://tex.z-dn.net/?f=%20%5Csf%20%5Cred%20%5Clongmapsto%20%5Cboxed%7B%3D%2014%7D)
Answer:
A
Step-by-step explanation:
1.9 about 2, and 4.4 is about 4.
2x4=8
So it is safe to say between 4 and 10.
Answer:
Step-by-step explanation:
A rectangular gate has a diagonal bar running across it.The gate is 80cm high and 2m wide.Work out the length of the bar.Give your answer in surd form..