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dem82 [27]
3 years ago
12

My 7th grade daughter is felling math. How can I help her get better?

Mathematics
2 answers:
UNO [17]3 years ago
7 0

Answer:

I would say if she felling 7th grade then that mean there not giving the help she need at school so if it that bad it cause of she not getting the most help she need to get at the school she in

nasty-shy [4]3 years ago
4 0

Answer:

Tell her to do more practices in math. You can also recommend her here at Brainly if she finds hard questions to solve.

Step-by-step explanation:


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Answer:

1. 8385 double majors

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3. 8515 codes

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Step-by-step explanation:

Given

Major areas = 130

Alphabets = 26

a.

There are 130 major areas in the university.

To get a double majors, means one select any of two of the major areas in the university.

i.e. just 2 alphabets are needed

Number of Double Majors = 130C2

130C2 = 130!/(128!*2!)

130C2 = 130 * 129/2

130C2 = 8385.

b.

Number of major codes available = Number of 2 digit codes + Number of 3 digit codes

Number of 2 digit codes = 2 alphabets

There are 26 ways of selecting the first letter

There are 26 ways of selecting the second letter

So, number of 2 digit codes = 26 * 26 = 676.

Number of 3 digit codes = 3 alphabets

There are 26 ways of selecting the first letter

There are 26 ways of selecting the second letter

There are 26 ways of selecting the third letter

So, number of 3 digit codes = 26 * 26 * 26 = 17576

Thus, number of major codes = 17576 + 676 = 18252

c.

Number of codes to identify a student with either a single major or double major

Number off single major codes = number of major areas = 130

Number of double major codes = 8385

Total = 130 + 8385 = 8515

d. From the solutions above, Yes there are enough codes available to identify all single and double majors at the university

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Answer:

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