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Airida [17]
3 years ago
12

In her freshman year, Wilhelmina earned a B+ in algebra, a B+ in English, an A- in science, and a B- in geography. As a sophomor

e, she earned a B- in world history, a C+ in biology, an A- in geometry, and an A- in English literature. Provide the grade points for each letter grade, then calculate each of her yearly GPAs and her cumulative GPA. Show your calculations. (5 points)
Use this chart:
Percentage Grade Grade points
98 – 100 A+ 4.0
94 – 97 A 4.0
90 – 93 A- 3.66
87 – 89 B+ 3.33
83 – 86 B 3.0
80 – 82 B- 2.66
77 – 79 C+ 2.33
73 – 76 C 2.0
70 – 72 C- 1.66
67 – 69 D+ 1.33
63 – 66 D 1
60 – 62 D- 0.66
0 – 59 E / F 0.0​
Mathematics
1 answer:
Lana71 [14]3 years ago
8 0

Answer:

Freshman: 3.245

Sophomore: 3.0775

All:  3.16125

Step-by-step explanation:

Freshman: (B+) + (B+) + (A-) + (B-) /(4lessons)

(3.33 + 3.33 + 3.66 + 2.66)/4=12.98/4=3.245

Sophomore: (B-) + (C+) + (A-) +(A-) /4

(2.66 + 2.33 + 3.66 + 3.66)/4 = 12.31/4= 3.0775

All: (3.245 + 3.0775)/2=6.3225/2=3.16125

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1.

the line of symmetry is x=2, means that the x coordinate of the vertex is x=2.

the point x=2 is the midpoint of the roots x_1 and x_2. 

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substitute (x_1 +x_2) with 4:

a*4 =8

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