The quadratic formula
1 answer:
You might be interested in
Since you have an angle and at least one side you can use either sine, cosine or tan. For this question, you would use sine like above. Hope this helps!
That's what I did and since the zeros would be -5 and 3 the answer would be 3 since it can't be a negative
The number of points Marco needs to bring his average up to 90% is 15points.
If there's a possible 25 possible points, and Marco has taken 5 quizzes;
Evidently, each quiz has weighs 5 points.
Mathematically;
- 2100 + 500x = 2250 + 450x
- 50x = 150
x = 3.
Therefore, he needs 5x points = 15 points to bring his average up to 90%.
Read more:
https://brainly.in/question/24249798