Answer:
for the third question y = 5, x = 3
Step-by-step explanation:
Just put the coefients in to a matrix
1x-6y-3z=4
-2x+0y-3z=-8
-2x+2y-3z=-14
mulstiply 2nd row by -1 and add to 3rd
divde last row by 2
multiply 2rd row by 6 and add to top one
multiply 1st row by -1 and add to 2nd
divide 2nd row by -3
mulstiply 2nd row by -1 and add to 1st row
divide 1st row by -3
rerange
x=-2
y=-3
z=4
(x,y,z)
(-2,-3,4)
B is answer
The best choice from the ones viewable in your picture is B) 1.
With that being said, 1 is used to indicate a perfect fit, which there is not one for this plot.
However, 0 would not be correct either, as 0 implies no correlation. We can see from the graph that there is a correlation.
-0.95 would not work either, as the line appears to trend upward; a negative correlation coefficient indicates it trends down.
340m-30m-13*20m=x
x-<span>distance from last house to Armando’s home.
x=340m-30m-260m=50m.
</span><span>Distance from last house to Armando’s home. is 50m.</span>