Y=125-20x ; the value of the cell phone after three years is $65.
Answer:
She realised $12 from selling 8 bags of caramel corn
Step-by-step explanation:
Given
(8, 12)
Required
Determine what it means based on the available information
A function is always written as (x,y)
Where x is dependent on y
By comparison,
x = bags of caramel corn = 8
y = amount realised = 12
Assuming the currency is in dollars
Conclusively,
She realised $12 from selling 8 bags of caramel corn.
Answer:positive correlation
Step-by-step explanation:
Answer:
use 5th and the 95th percentile of these values.
Step-by-step explanation:
To find the 90% confidence interval for the population standard deviation, randomly sample with replacement from the original sample thousands of times. From each new sample, you compute the sample standard deviation. Using the bootstrap method, we can find the 90% confidence interval for the population standard deviation,from the values of 5th and the 95th percentile of these values.
So we need to use 5th and the 95th percentile of these values.
Answer:
Step-by-step explanation:
pivoting means producing a unit column in matrices.
The aim is to make the elements above and below the pivot element o.
so we have;
we will make the pivot element a unit element that is 1.
→
next we perform the operation - then we have
next we also perform the operation thus we have