Answer:
and 
Step-by-step explanation:
At=As+Ar; A=b.h and
, then: At=(x+120)x so
(x+120)x=4500,
Applying cuadratic equation formula:
Solution :
Consider quadrilateral ABCD is a parallelogram. The parallelogram have diagonals AC and DB.
So in the given quadrilateral ABCD, let the diagonal AC and diagonal DB intersects at a point E.
Thus in the quadrilateral ABCD we see that :
1. AC and DB are the diagonals of quadrilateral ABCD.
2. Angle DCE is congruent to angle BAE and angle CDE is congruent to angle ABE. (they are alternate interior angles)
3. Line DC is congruent to line AB. (opposites sides are congruent in a parallelogram )
4. Angle ABE is congruent to angle CDE. (Angle side angle)
5. Line AE is congruent to line EC. And line DE is congruent to line EB. (CPCTC)
Thus we see that if the diagonals of a
, then the quadrilateral is a parallelogram.
After solving the equation
we get values of x: 
Step-by-step explanation:
We need to find the value of x from the equation: 
Solving the expression:

Using the Zero Factor Principle: if ab=0 then a=0 and b=0
So, 

So, After solving the equation
we get values of x: 
Keywords: Solving Equations
Learn more about Solving Equations at:
#learnwithBrainly
Answer:
The bacterium expels oxygen, making room for
hydrogen peroxide and carbon dioxide. These elements are then combined with solar energy to produce fuel.
Step-by-step explanation:
.
.
Thank my answer and mark me as brainist
Step-by-step explanation:
you multiply the length time the width
the answer would be in cm^2