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const2013 [10]
3 years ago
15

Kim surveyed 80 students at her school and found that 0.65 of the students she surveyed said their favorite class is math. Anoth

er 15% of the students she surveyed reported that their favorite class is science. How many more students in the survey prefer math over science?
Mathematics
1 answer:
lilavasa [31]3 years ago
7 0
80*.65=52
15%(80)=12

40 more prefer math over science
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ehidna [41]

Answer:

√2(√3 - 1)/4

Step-by-step explanation:

To find an exact value for Cos75°, we use the compound angle formula. Since 75° = 45° + 30°, Cos75° = Cos(45° + 30°).

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Substituting these values into the above equation, we have

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6 0
3 years ago
If EF=2x-12, FG= 3x-15, and EG=23, find values of x, EF, and FG
velikii [3]

we have that


*-------------------------*--------------------------------*

E                            F                                     G


EF=2x-12

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we know that


EF + FG = EG


so

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therefore


the answer part a) is

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the answer part b) is

the value of EF is 8


the answer part c) is

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