Answer:
Step-by-step explanation:
By using linear regression calculator,
Linear regression equation representing the data set will be,
y = 7.79x + 34.27
Correlation coefficient of the line will be,
R = 0.98
Since, correlation coefficient of the line is (+0.98), relation between the two variables is a strong linear relationship.
That means hours spent studying has the strong relation with test scores obtained.
Answer:
Cost of each blank shirt is less than or equal to $ 5.5
Step-by-step explanation:
Let x denotes cost of each blank shirt.
Total number fo shirts bought by Tyina = 12
Amount charged for each shirt to have the club logo = $2.75
So,
Amount charged for 12 shirts to have the club logo = 
As Tyina cannot spend more than $99,

Now solve the inequality.

So,
Cost of each blank shirt is less than or equal to $ 5.5
The answer should be 12x cm power of 2
Answer:
i think it is S
Step-by-step explanation:
i took the test on k12