Answer:
no need to prove ,I believe you
Step-by-step explanation:
i believe you
Answer is 12
take away 5 and you have 30 and then 30 divided by 2.50 gets you 12
In statistics, it is imperative to arrange your data entries from least to greatest. That would be the first step of our solution
3 6 7 9 10 12 13
Interquartile range is the difference of the last quartile to the first quartile. Divide your entire data set into four parts. Each division is called a quartile. Its numerical value is the average of its numbers. However, since our data set contains 7 numbers, which is odd, we write the median (middle value) twice. The quartiles are:
3 6 | 7 9 | 9 10 | 12 13
Q₁= (3+6)/2 = 4.5
Q₂ = (7+9)/2 = 8
Q₃ = (9+10)/2 = 9.5
Q₄ = (12+13)/2 = 12.5
The interquatile range is Q₄ - Q₁ = 12.5 - 4.5 = 8
You may perform the division using either long division or synthetic division. Any preference?
I used synthetic div. with -2 as the divisor:
________________
-2 / 3 4 -10 0 15
-6 4 12 -24
-------------------------
3 -2 -6 12 -9
In factored form, with remainder, we then have:
(x+2)(3x^3 - 2x^2 - 6x + 12) remainder -9
If you need clarification of any part of this solution, let me know.
Answer:
A. 3x3x3x3 = 81 because you multiply 3 by itself 4 times
