Answer:
slope is equal to rise (going up or down on graph) over run (going left or right)
Step-by-step explanation:
1 = - 
2= 
= 2
3. 
4. -
5. 
= 
6. -
= - 
Answer:
Test statistic = 1.664
Step-by-step explanation:
The hypothesis :
H0 : μ = 47.2
H1 : μ ≠ 47.2
Given that :
Sample mean, xbar = 47
Sample size, n = 250
Standard deviation, σ = 1.9
The test statistic :
(xbar - μ) ÷ (σ/√(n))
T = (47 - 47.2) ÷ (1.9/√(250))
T = (0.2 / 0.1201665)
Test statistic = 1.664
Answer:
Step-by-step explanation:
multiply each side by 2
subtract 3 from each side
multiply each side by -1
why does maths have to be confusing
