(n/43)-87=(-75)
(n/43)= 12 (we added 87 to (-75)
n = 516 (we multiplied 12 by 43)
The unknown number is 516
To check
(516 / 43) - 87 = (-75)
Answer:
The line's most probable length is 69.4012 meters.
The standard deviation is 0.0032 meters.
Step-by-step explanation:
We are given the following in the question:
69.401, 69.400, 69.402, 69.396, 69.406, 69.401, 69.396, 69.401, 69.405, 69.404
Formula:
where are data points, is the mean and n is the number of observations.
The line's most probable length is 69.4012 meters.
Sum of squares of differences = 0.0001016
The standard deviation is 0.0032 meters.
Answer:
see explanation
Step-by-step explanation:
Given
c = (s + ) m
There are 2 possible approaches
Approach 1
Divide both sides by m
= s +
Multiply both sides by 3 to clear the fraction
= 3s + b ( subtract b from both sides )
- b = 3s ( divide both sides by 3 )
- = s, cancelling the factor 3 gives
s = -
----------------------------------------------------------------------------------------
Approach 2
Distribute the right side by m
c = ms +
Multiply through by 3 to clear the fraction
3c = 3ms + bm ( subtract bm from both sides )
3c - bm = 3ms ( divide both sides by 3m )
- = s, thus
s = -