A survey was done to determine the effect of students changing answers while taking a multiple-choice test on which there is on
1 answer:
Answer:
6% of the changes were from incorrect to incorrect
Step-by-step explanation:
The sum of the percentages must be 100%.
We have these following percentages
65% of the changes were from incorrect answers to correct
29% were from correct to incorrect
P% were from incorrect to incorrect
So
6% of the changes were from incorrect to incorrect
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Answer:
Option D. 3 + 9i
Step-by-step explanation:
We know that the formula to find the middle point is:
We know that the middle point is:
And the end point is:
We wish to find the point
So we can write the following equation
(i)
and
(ii)
Now we clear from equation (i) and clear
from equation (ii)
For equation (i) we have:
For equation (ii) we have:
Then the initial point is:
The correct answer is the last option 3 +9i