What you have written here is an equation.
You can define as
a2+b2=y
If you want to derive a^2+b^2 from ( a+b)^2
(a+b)2=a2+b2+2ab
Ora2+b2=(a+b)2−2ab
Answer:
8.25 feet
Step-by-step explanation:
3 2/3 times 2 1/4 equals 8.25
Answer:
The solution for given system of equations is: x = 6 and y = 3
Or
(6,3)
Step-by-step explanation:
Given equations are:

There are three methods to solve simultaneous equations
- Elimination
- Substitution
- Co-efficient method
We will use the elimination method as the coefficients of x in both equations are already same
Subtracting equation 2 from equation 1

Putting y = 3 in equation 2

Hence,
The solution for given system of equations is: x = 6 and y = 3
Or
(6,3)
85 + 95 = 180$
So 150 - 180 = -30$ so she is 30 dollars in debt.
Answer:

Step-by-step explanation:
Sides of the figure = n = 7
<h3><u>Formula for measuring the interior angles of a polygon:</u></h3>
(n - 2)×180
Where n is the number of sides in the polygon
So,
<h3><u>Measure of interior angles in the figure:</u></h3>
= (n - 2) × 180
= (7 - 2) × 180
= 5 × 180
= 900
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