Solve the following equation.
1 answer:
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(1)
The square root of 8 is somewhere between 2 and 3, because
So, is between -1 and 0, whereas
is between 2 and 3.
So, we have
(2)
The square root of 25 is 5, because
So, the left hand side is exactly
You seem to have already computed the right hand side to be 2.30, so we have
9514 1404 393
Answer:
5x -3y = 44
Step-by-step explanation:
We choose to start with the form ...
(Δy)x -(Δx)y = (Δy)(x1) -(Δx)(y1) . . . . . where Δy = y2 -y1 and Δx = x2 -x1
For this purpose, it is convenient to choose y2 > y1, so we have ...
Δy = -3 -(-8) = 5
Δx = 7 -4 = 3
5x -3y = 5(4) -3(-8)
5x -3y = 44
