2D-a^2=2
2(a√2) -a^2=2
a^2-2√2*a+2=0
2a= 2√2 + √(8-4*2) = 2√2
hence, perimeter = 4a = 2*2a=2*2√2 = 4√2
The system of equations have one solution
<h3>How to determine the number of solutions?</h3>
The equations are given as:
2x + 2y = 5
3x + 3y = 7
The above equations are distinct linear equations.
This means that they would have one point of intersection, if plotted on a graph
Hence, the system of equations have one solution
Read more about system of equations at:
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Answer:
8. Not a function, the first three are of the same pattern but not the last two
9. Not a function, each input should have only 1 output or two inputs could have one output.
Answer:
The correct answer is 12.446 feet.
Step-by-step explanation:
A ladder leans against a building forming an angle of 50° with the ground.
The base of the given ladder is 8 feet away from the building.
Let the length of the ladder that is to be found be x feet.
Thus we find the cosine of the angle of inclination.
∴ cos 50° = 
⇒ x = 12.446 feet
Therefore the length of the ladder is 12.446 feet.
No I belive they don’t have to be