Answer:
Step-by-step explanation:
[0,7)
because the dot is colored in you need to have the bracket
Answer:
2>x
y>-1
Step-by-step explanation:
assume y=0 when finding x and vice versa
Answer:
y=a-4 divided 3-a and a cut so remember 4divided3 so, y= 1.33
Step-by-step explanation:
The missing steps are each right angles and
.
Solution:
Step 1: Given data:



Step 2: In the two polygons,
and 
(Each right angle)
Step 3: Given

Step 4: By third angle theorem,
If two angles in one triangle are congruent to the two angles in the other triangle, then the third angles in the triangles also congruent.

Step 5: By the definition of congruent polygons,
If two same shape polygons have all the angles are congruent and all the corresponding sides are congruent then the polygons are congruent.
Hence
.
Therefore the missing steps are each right angles and
.
For this problem, I'd use cross-multiplication.
9/12 = x/8.
When cross multiplying, multiply 12*x and 9*8. This leads to a new equation:
12x = 72.
Then you solve as an algebra problem.
*Divide 12 on both sides*
x = 6.