Answer:
The overall expected grade point average for the semester is 3.16/3.1 or 3.2 if you round it up.
Step-by-step explanation:
To get the average, you need to add up all the numbers then divide the sum by how many numbers you added.
3.5 + 3.0 + 3.0 = 9.5
9.5 / 3 = 3.16
Answer:
7
Step-by-step explanation:
To solve this problem we need to find x
First we need to do parenthesis
This means that the equation becomes 5x - 2x - 2 = x + 3x + 5
Next add or subtract, this simplifies it to 3x - 2= 4x + 5
After this bring the numbers on the right and the variables on the left
This means subtracting 4 on each side and adding 2 on each side
Now the equation becomes -x = 7
Lastly, put the negative on the right
x = 7
Answer:
The require expected value of x is 
Step-by-step explanation:
Consider the provided information.
Mike will play a game in which he will toss a penny, a nickel, and a dime at the same time.
The probability of head is 
He will be awarded 3 points for each coin that lands with heads faceup.
Let the random variable x represent the total number of points awarded on any toss of the coins.
Thus the expected value is:
Hence, the require expected value of x is
Answer:
Try d .............,,.....
We could find the error first, but if we solve the equation, we can compare our answers to find the error. So,
7x + 12 + 3x = 8
10x + 12 = 8
10x = -4
x = -4/10
x = -2/5.
When we compare the two, we see that our second line is vastly different, and we can easily isolate the mistake, finding that it occurs when they disregard the variable in the 3x term and subtract 8 by 3 rather than combining the terms 3x and 7x together.
