Answer:
2
Step-by-step explanation:
rate of change = (y2-y1)/(x2-x1)
(20-26)/(5-8)
-6/-3 = 2
Answer:
-2.23 ; 0.012874
Step-by-step explanation:
Given that :
Population mean (μ) = 25 minutes
Same mean (x) = 24min 12 seconds = 24.2 minutes
Standard deviation σ = 3
Sample size (n) = 70
Test statistic :
Using the relation :
Tstatistic = (x - m) / σ/sqrt(n)
Tstatistic = (24.2 - 25) / (3/sqrt(70)
Tstatistic = - 0.8 / 0.3585685
Tstatistic = - 2.2310939
= - 2.23
The P value can be obtained using a. P value Calculator :
P at α = 95% and test statistic = - 2.23
Hence, p = 0.012874 using calculator
Answer:
Lori spends <u>9 minutes</u> on sketching 
th of a sketch.
Step-by-step explanation:
Given equation:
where 
number of minutes Lori spends on sketching
and 
number of sketches Lori makes.
We need to calculate the time spent by Lori in sketching of a sketch.
So we know the value of 
as 
represents number of sketches and in this situation Lori has sketched only a fraction of a painting.
So we plugin in the equation and calculate 
which is time spent by Lori sketching th of a sketch.
∴ 
minutes (Answer)
∴ Lori spends 9 minutes on sketching th of a sketch.
