Answer:
420
Step-by-step explanation:
Amount in the 45% solution + amount in the 70% solution = amount in the 45% solution
0.15 × 350 + 0.70 × V = 0.45 × (350 + V)
52.5 + 0.70V = 157.5 + 0.45V
0.25V = 105
V = 420
You need 420 mL of the 70% solution.
The score which is assigned from 1 to 4 by the teacher to each student for the project and is most likely to be is 3 with 0.48 probability.
<h3>
What is probability distribution?</h3>
Probability distribution is the statistical model which represent all the achievable and similar values of a random variable that it can possess in a specified range.
A teacher assigns a score from 1 to 4 to each student project. the table below shows the probability distribution of the scores for a randomly selected student.
- Probability distribution score: 1, 2, 3, 4,
- x probability: p(x) 0.06, 0.20, 0.48, 0.26
In the above data, the height probability of selection is 0.48. This probability belongs to the score 3.
Thus, the score which is assigned from 1 to 4 by the teacher to each student for the project and is most likely to be is 3 with 0.48 probability.
Learn more about the probability distribution here;
brainly.com/question/26615262
You can’t tell because it might be more than 1 pound, but you can say it’s at least 1 pound.
Answer:
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is
Here [ a, b ] = [ - 1, 1 ]
f(b) = f(1) = 3 ← value of y when x = 1
f(a) = f(- 1) = ← value of y when x = - 1
average rate of change = = =