Answer:
everyone always asks "where's the toilet?" but no one ever asks "how's the toilet?" :'(
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
4u-5v=23
-2(2u+4v=16) We multiply by -2 here to destroy u's.
4u-5v=23
-4u-8v=16 we addition both processes
-13v=39 so, v=-3
4u-5(-3)=23, 4u=8 so, u=2
u+v= -3+2= -1
From the observation of the dispersion graph it is concluded that the answer to this question is option D. r = -0.5.
The correlation coefficient "r" is a measure of the linear relationship between two random variables.
When the correlation is positive, the value of "r" is between 0 and 1. This means that when one variable increases the other too.
When the correlation is negative, the value of "r" is between -1 and 0. This means that one variable decreases as the other increases.
When there is no correlation the value of "r" is 0
In this case, the dispersion chart shows that the variable "y" decreases as the variable "x" increases. Therefore the value of "r" must be negative. Of all the options, the only one that presents a value of negative r is option D:
r = -0.5
We can express this as a ratio. 4 balls :8 caps.
Then simplify. 1 ball: 2 caps.
We have to make caps equal to 6, so multiply by 3. For consistency, we need to multiply the number of balls by 3 too.
3 balls: 6 caps.
So Malcolm needs 3 balls of wool.
Answer:
A = 25pi
Step-by-step explanation:
The area of the circle is given by
A = pi r^2
The radius is 5
A = pi 5^2
A = 25pi
