Answer:
12
Step-by-step explanation:
Since they are parallel then
(7x - 8) + (11x - 28) = 180
18x - 36 = 180
18x = 216
x = 12
First you have to figure that it sounds confusing but. What you have to do is that 171 is 189 LESS than from one place to another. So just do : 189-171= 18. And then you know 18.
Answer: Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:(-2,9)
Equation form: x=-2 y=9
Step-by-step explanation:
Point Form:(-2,9)
Equation form: x=-2 y=9
Answer:
The length of
is;
D. 38 units
Step-by-step explanation:
The given parameters are;
The type of the given quadrilateral FGHI = Rectangle
The diagonals of the quadrilateral =
and 
The length of IE = 3·x + 4
The length of EG = 5·x - 6
We have from segment addition postulate,
= IE + EG
The properties of a rectangle includes;
1) Each diagonal bisects the other diagonal into two
Therefore,
bisects
, into two equal parts, from which we have;
IE = EG
= IE + EG
3·x + 4 = 5·x - 6
4 + 6 = 5·x - 3·x = 2·x
10 = 2·x
∴ x = 10/2 = 5
From which we have;
IE = 3·x + 4 = 3 × 5 + 4 = 19 units
EG = 5·x - 6 = 5 × 5 - 6 = 19 units
= IE + EG = 19 + 19 = 38 units
= 38 units
2) The lengths of the two diagonals are equal. Therefore, the length of segment
is equal to the length of segment
Mathematically, we have;
=
= 38 units
∴
= 38 units.