Answer:
mean; the average of George's scores is the mean = 83.4
Step-by-step explanation:
This is not an equation and thus cannot be solved for x. Ensure that you have copied down the original problem exactly.
If, on the other hand, you meant x + 2x - 3 + x = - 4, you do have an equation and can solve for x as follows:
4x - 3 = -4 => 4x = -1 => x = -1/4
Answer:
0.375, 0.125, 0.5
Step-by-step explanation:
given that you are taking a T/F exam and you have no idea at all about the answers to the last three questions.
Probability for correct guess = 0.5 remains constant for each of the three questions
X - no of questions is binomial with n =3 and p = 0.5
1) the probability that you guessed right on exactly one of the three questions
= P(X=1)
= 
2) the probability that you guessed right on zero of the three questions
= 
3) the probability that you guessed right on at least two of the questions
=
Answer:
The percentage of dextrose is this solution = 7.5 %
Step-by-step explanation:
A solution is made from 3 mL of dextrose in 40 mL total.
We can determine the percentage by dividing 3 mL by 40 mL and multiply the result by 100.
i.e.
3/40 × 100 = 0.075 × 100
= 7.5 %
Thus, the percentage of dextrose is this solution = 7.5 %
Answer: -9/1
Step-by-step explanation: you want to get x and y on opposite sides so you subtract 9x and that gives you y=-9x+9 because the nine on the right side doesn’t have a negative in front of it so you know it’s positive. Your slope is whatever comes before the x so since it’s -9 that means it’s -9/1
