Use the elimination method.
(-5x + y = 26)7
2x - 7y = 16
-35x + 7y = 182
2x - 7y = 16
-33x = 198
x = -6
Substitiute -6 for x in one of the equations.
2x -7y = 16
2(-6) - 7y = 16
-12 - 7y =16
-7y = 28
y = -4
The ordered pair would be (-6,-4)
Similar shapes may or may not be congruent.
The value of x is (a) 9.0
The corresponding sides are:
- AB and DE
- BC and EF
- AC and DF
The side lengths are:
Because the shapes are congruent, and AC corresponds to DF.
This means that:
So, we have:
Collect like terms
Divide both sides by 5
<em>Hence, the correct option is (a) 9.0</em>
Read more about congruent triangles at:
brainly.com/question/12413243
Recall that
. So we can add twice the first equation to the second one to get
Since
, we have
so
If
, then
If
, then
So the solution set is
(2x2 + x − 3 )(x − 1.)
= 4x3 + x2 - 3x - 2x2 - x + 3
= 4x3 - x2 - 4x + 3
option 4
If you're asking the height of the triangle, it is 2x-1.
I got the 2x from "twice the length of the base"
and (-1) from "1 cm less"