In the pictured graph, the X axis is labeled as real Axis and the Y axis is labeled as Imaginary axis.
The letter i after a number is considered an imaginary number.
So in the given numbers 2 +2i the w is the real number and 2i is the imaginary number, which is located at the dot labeled B.
-1 +3i, -1 is the real number and 3i is the imaginary number, which is located at the dot labeled A.
Line Segment AB is the correct answer.
Answer:
40 steps
Step-by-step explanation:
1:3
x:120
120/3=40
2x34 ds and search the scientific calculator and use it
Step-by-step explanation:
Answer:
We have 96% of confidence that the true proportion of people who responded that they have a plan to buy one electric car is between (0.121 and 0.303).
Step-by-step explanation:
For this case the estimated proportion of people who responded that they have a plan to buy one electric car is given by:

Where X represent the number of people who responded that they have a plan to buy one and n represent the sample size selected
We know that the confidence level for this case is 96% of confidence, then our significance level would be
and
. And the critical value would be:
The confidence interval for the true proportion is given by this expression:
Replacing the data given we got:
We have 96% of confidence that the true proportion of people who responded that they have a plan to buy one electric car is between (0.121 and 0.303).