43.5 is the answer to the question
-15×-5=75 I don't know of this helped but whatever
Answer:
x ≈ 6.71
Step-by-step explanation:
a²+b²=c²
a=3, b=6, c=x
3²+6²=c²
9+36=c²
45=c²
c=√45
c≈6.71
Answer:
Option D.
Step-by-step explanation:
The given system of equations is
...(1)
...(2)
On simplifying the second equation, we get
On dividing by -1, we get
...(3)
It is clear that equation (1) and (3) are same equations. It means equation (1) and (2) represent the equivalent equation.
So, the given system of equations has infinitely many solutions.
Therefore, the correct option is D.