The answer is d because 12c=20 = c=65/12 divide by both sides
Answer:
1681
Step-by-step explanation:
Answer:
Image result for If y is a positive integer, for how many different values of y is, ∛144/a whole number brainly
2 different values
Therefore, "y" must be a factor of 144. Therefore, for 2 different values of "y" ( and ) is a whole number
example
We need the remember that:
Therefore, the radicand (In this case ) must be a perfect cube in order to get a whole number.
Remember that a perfect cube are the numbers that have exact cube roots. Therefore, "y" must be a factor of 144.
Now, we need to descompose 144 into its prime factors:
Then, the factors of 144 are:
Substitute values into to check:
Answer:
n=6
So then the correlation coefficient would be r =0.913
And as we can see the value for r is very high and near to 1. so the correct option for this case would be:
C. There is a positive correlation between the heights of men and women.
Step-by-step explanation:
Previous concepts
The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.
And in order to calculate the correlation coefficient we can use this formula:
We have the following data:
Women (X): 66 64 66 65 70 65
Men(Y): 72 68 70 68 74 69
We have quantitative data so no makes sense say that we have categorical data.
For our case we have this:
n=6
So then the correlation coefficient would be r =0.913
And as we can see the value for r is very high and near to 1. so the correct option for this case would be:
C. There is a positive correlation between the heights of men and women.
1. 7.8 x 10^3
2. 4.8 x 10^8