You first work out the mean then for each number subtract the mean and square the result then work out the mean of those squared differences and take the square rot of that and you're done :)
Answer: 32.67
Explanation: Use multiplication to get this answer, and a basic hint is the word "of", that's a word in Mathematics for multiplying.
C, I think
difference(subtract) between 7 times a number(7 multiplied by a unknown number) AND 5(other number to subtractoon is(= to) 51
2(0) + (0) - 3(0) +4= 4
*My bad
Answer:
(3, 140)
Step-by-step explanation:
If we have the equation 
, we can substitute the value 3 as 
to find the value of 
.
So we know that the total cost is $140.
To represent this as an ordered pair, we need to take note that the independent variable (x) is the one that we change to get the result (y).
We changed to get , so is the x and is the y.
So it's represented as (3, 140).
Hope this helped!
