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laiz [17]
3 years ago
11

In a particular class, exams are worth 50% of the overall grade, quizzes are worth 25% of the overall grade, homework is worth 2

0% of the overall grade, and class participation is worth 5% of the overall grade. A particular student has earned an average score of 80.2% on the exams, 77.3% on the quizzes, 87.8% on the homework assignments, and 100.0% on class participation. What is this student’s overall grade in the course?\
Mathematics
1 answer:
k0ka [10]3 years ago
3 0

Answer:

His overall grade in the course was 0.81985 = 81.985%.

Step-by-step explanation:

The student's overall grade is his grade in each part of the class(exams, quizzes, homework, class participation) multiplied by the weight of the part.

So

Exams are worth 50% of the overral grade.

He earned an average score of 80.2% on the exams.

Quizzes are worth 25% of the overall grade.

He earned an average of 77.3% on the quizzes.

Homework is worth 20% of the overall grade

He earned an average of 87.8% on the homework assignments

Class participation is worth 5% of the overall grade

He earned an average of 100.0% on class participation.

What is this student’s overall grade in the course?

0.5*0.802 + 0.25*0.773 + 0.2*0.878 + 0.05*1 = 0.81985

His overall grade in the course was 0.81985 = 81.985%.

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The spinner should have 4 equal sections

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Add 3 and 1

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Explanation:

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y = (x + 3)^2 + (x + 4)^2

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3) add like terms:

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6) substitue x^2 + 7x = (x + 7/2)^2 - 49/4 in the equation for y:

y = 2 [ (x + 7/2)^2  - 49/4] + 25

7) take -49/4 out of the square brackets.

y = 2 (x + 7/2)^2 - 49/2 + 25

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y = 2(x + 7/2)^2 + 1/2

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