Answer:
EF is 4 units.
Step-by-step explanation:
It is given that the two triangles 
are congruent to each other i.e.
Coordinates are given as:
A(-1,1)
B(2,4)
C(3,1)
As per the property of congruence, all the corresponding sides and angles of the two triangles are equal to each other.
i.e. AB = ED
BC = DF
AC = EF
We are given with the coordinates of points A, B and C here from which we can easily calculate the side AC using the distance formula.
Where 
are the coordinates of the two points whose distance is to be calculated.
So,
Hence, <em>AC = EF = 4 units</em>
7(2+2x) + (x+2) × 6
14 + 14x + 6x + 12
26 + 20x
Depending on where the counting starts, we can establish a set of odd numbers or even numbers. If we start with odd numbers, skipping one every time gives a set of odd numbers, and so forth with even.
Answer:
5/9 & -10/3
Step-by-step explanation:
Set each to 0 and solve:
9x-5 = 0
9x=5
x=5/9
6x+20=0
6x=-20
x=-20/6
x= -10/3 or -3 1/3
Answer:
0.25
Step-by-step explanation:
