Combine the terms with j, so -7j+3 would be left.
Answer:
4.87138
Step-by-step explanation:
i think
Answer:
1. A
2. B
Step-by-step explanation:
1. Only option A creates that graph, the other options are either backwards or are on top of each other.
2. Because the two lines are parallel, and do not intersect at all, there will be 0 solutions.
Answer:
For this case we know that the random variable of interest would be X and the distribution for X is given by:

And by properties of this distribution the expected value for this case is:

And the variance :

Step-by-step explanation:
For this case we know that the random variable of interest would be X and the distribution for X is given by:

And by properties of this the expected value for this case is:

And the variance :
