You are studying for your final exam of the semester. up to this point, you recieved 3 exam scores of 76%,99%, and 86%. to recieve a grade of a in the class you must average exam score between 90% and 100% for all 4 exams including the final.

find the widest range of scores that you can get on the final exam in order to recieve a grade of a for the class. use interval notation

The required range of marks is,

[99 100]

Step-by-step explanation:

Let x be the percentage score on the final exam,

Since, 3 exam scores are 76%, 99%, and 86%,

Thus,

According to the question,

For getting grade A,

90 ≤ The total average percentage scores in four exams ≤ 100

But x can not exceed to 100 %,

Thus, the required range of marks in fourth exams for getting grade A is,

[99 100]

dd

step-by-step explanation:

dd

i think the correct option is the second option.