Well a difference is the difference between them. difference means subtraction. So so a difference can be written as:
40.67 - (-41.29)
If you subtract a negative number you really add it. to make sense of this you could say 40.67 is 40.67 units away from zero in the positive direction. whereas -41.29 is 41.29 units away in the negative direction. since they go in opposite directions away from zero that means that thw length between them is extended and must then be added together. So
40.67 + 41.29 = 81.96
Did you ever get the answer?
IQR= 18 is the interquartile range of his scores.
Answer:
2
Step-by-step explanation:
(2/3)3= 2× 3/3 = 2×1 (since 3/3=1)
=2
Answer:
(x − 2)×(3x+1)
Step-by-step explanation:
We can use this method:

All I did is Subtracting x then adding x which will not affect the result because -x + x = 0