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Ira Lisetskai [31]
3 years ago
14

To get a grade of c in your course you must average at least 75% on 4 exams. you have taken the first three exams and gotten sco

res of 68,78, and 81. what must you score on the last exam to get a c or better
Mathematics
1 answer:
lara31 [8.8K]3 years ago
3 0
The total of the scores on the 4 exams must be at least 75 x 4 = 300.
The total scores in the first 3 exams is 68 + 78 + 81 = 227.
Therefore the minimum score needed on the last exam is 300 - 227 = 73.

The answer is a score of at least 73.

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The function given in the question is 6·x² + 48·x + 207 = 15

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5) Compare (x + 4)² = -16 which is in the form (x + a)² = b

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