The quadrilateral is either a square or a rectangle as all angles are the same measure (90 degrees)
Answer: B
Step-by-step explanation:

Substituting into y=3x+b,

2x+y=6
y=6-2x and y=x^2-4x+3
The solution occurs when they are equal so we can say y=y which is:
x^2-4x+3=6-2x add 2x to both sides
x^2-2x+3=6 subtract 6 from both sides
x^2-2x-3=0 factor
(x+1)(x-3)=0
So x=-1 and 3, using y=6-2x we find the corresponding y values...
y(-1)=6--2=8, y(3)=6-6=0 so the two solutions are the points:
(-1,8) and (3,0)
Answer:
1 hour 42 minutes
Step-by-step explanation:
Given: Speed of 1st trucker= 62 mph
Speed of 2nd trucker= 66 mph
Total distance need to cover to be in contact is 270 miles
1st trucker start 1 hour ahead of 2nd trucker
Lets assume 2nd trucker take `x` hours to be in contact and 1st trucker take `(x+1)` hours.
We know, distance= 
1st trucker, distance
∴ 
2nd trucker, distance
∴
Now, putting the values in an equation.

⇒ 
Opening the parenthesis to solve and subtracting both side by 62
⇒ 
∴ x=
= 1 hour 42 minutes
∴ It will take 1 hour 42 minutes to be able contact each other after first trucker leaves.
The Probability Of Choosing An 8 Is (1/10)(1:10)
The Probability Of Choosing A Number Less Than 5 Is (4/10) (4:10) Simplified Its 2/5