Is there more to this question? Because there is no way to answer it.
Factors of 21={1,3,7,21}
Factors of 63={1,3,7,9,21,63}
the highest common factor (HCF) is 21.
A complex number that lies above the real axis and to the left of the imaginary axis
- 3 + 2i
Answer:
a)
b)The p value for this case can be founded like this:
Step-by-step explanation:
We have the following data given:
Number of items (x): 40 30 70 90 50 60 70 40 80 70
Labor (hours) (y): 82 60 139 180 99 119 140 73 157 146
And in order to calculate the correlation coefficient we can use this formula:
For our case we have this:
n=10
So then the correlation coefficient would be r =0.997
Part a
In order to test the hypothesis if the correlation coefficient it's significant we have the following hypothesis:
Null hypothesis:
Alternative hypothesis:
The statistic is gven by:
And is distributed with n-2 degrees of freedom. df=n-2=10-2=8
Part b
The p value for this case can be founded like this:
Is a very low value so we have enough evidence to reject the null hypothesis.
Answer:
-6, -1, 4, 9
Step-by-step explanation:
You can substitute the values and do the arithmetic:
f(-1) = 5(-1) -1 = -5 -1 = -6
Or, you can recognize that the output values will increase by 5 for each increase of 1 in the input value.
f(0) = -6 +5 = -1
f(1) = -1 +5 = 4
f(2) = 4 +5 = 9
The (input, output) pairs are ...
(-1, -6), (0, -1), (1, 4), (2, 9)