Add each term and divide it by 2.
5+7 = 12
12/2 = 6
-2 + 6 = 4
4/2 = 2, then add the i back on to get 2i.
The midpoint is 6 + 2i
Answer:
24
Step-by-step explanation:
x:12
6:3
When 12 go to 3: multiple 4
So 6 multiple 4 = 24
Answer:
x=5
Step-by-step explanation:
4x+10=30
-10 -10 on both sides
4x=20
Divide 4 on both sides
20/4=5
✨Hope this helps!!✨
Answer:
Increase
Step-by-step explanation:
The researcher records the following estimates: 450, 426, 310, 500, and 220.
The mean of these estimates is derived below.
Mean = (450+426+310+500+220)/5
=1906/5=381.2
If the researcher removes the estimate of 220.
The mean of the other numbers will be:
Mean =(450+426+310+500)/4
=1686/4=421.5
By comparison of the two mean, we can see that the value of the mean will increase.
