1. The given rectangular equation is
.
We substitute
.

Divide through by 



2. The given rectangular equation is:

This is the same as:

We use the relation 
This implies that:



3. The given rectangular equation is:

This is the same as:
We use the relation
and 
This implies that:

Divide through by r


4. We have 
We substitute
and 

This implies that;



5. We have 
We substitute
and 

This implies that;



<span>9.23076923076923%
i think by rounding it it would be 9.23%</span>
Answer:
8/20, 4/10, and 16/40
Step-by-step explanation:
40% is basically 40/100.
40/100=4/10=8/20=16/40
hope this helps!! :))
Change 4.2 kilometers to meters, which is 4200 meters, then add that to 325, so 4525 :)
It is given that line segment BC is congruent to line segment EC and that line segment AC is congruent to DC. Because of the vertical angles theorem, angle BCA is equal to angle DCE. Therefore, triangles CBA AND DEC are congruent by SAS. Using CPCTC, BA is equal to ED.