Answer:
Following are the responses to the given question:
Step-by-step explanation:
Mean Absolute Deviation MAD
Mean squared error
linear trend equation is 

Naive method

Please find the attached file.
Answer: x=7
Step-by-step explanation:
3x=21
21 divided by 3 is 7
so x equals 7
To find angle c, the fourmula is 1/2 of the intercepted arc. so, this would be (-3x-6)=(-4x)/2, then bring the 2 over, (-3x-6)2=-4x, multiply the 2, -6x-12=-4x, -2x=12, simplify, x=-6
check by plugging in.
Answer:
Step-by-step explanation:
(40,5) and (0,0) are points on the line.
Slope of line = (40 miles)/(5 minutes) = 8 Mikes per minute
Answer:
No Solution
Step-by-step explanation:
if one side is 4, another side -8z and +8z cancels, left -7
4 ≠ -7