Answer:
The equation of trend line is 
.
The linear trend forecast for period 8 is about 20.86.
Step-by-step explanation:
The given data table is
Period Sales
1 19
2 18
3 15
4 20
5 18
6 22
7 20
We need to find the linear trend forecast for period 8.
The general form of linear regression is
.... (1)
where, a is y-intercept and b is slope.
Using the graphing calculator we get
Substitute these values in equation (1).
The equation of trend line is .
Substitute x=8 to find the linear trend forecast for period 8.
Therefore the linear trend forecast for period 8 is about 20.86.
PEMDAS is the order of operations....it is the order u solve equations.
P = parenthesis....u solve what is in parenthesis first
E = exponents...u solve the exponents next
M = multiply , D = divide....starting from left and going right, u do all the multiplying and dividing
A = addition, S = subtraction...starting from left and going right, u do all the addition and subtraction
Answer:
9%
Step-by-step explanation:
10kg=R 20
5kg= R 15
??kg=R22
You add kgs it gives you 15kg and the and money it will give you R35 then
15kg=R35
???=R22
22/35×15 = 9,428571429
=9 %
Answer:
0.36x, 
x
Step-by-step explanation:
36/100 = 9/25
