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algol [13]
3 years ago
15

Friendship bracelets sell for $7 each how much will it cost to buy 5 friendship bracelets?

Mathematics
2 answers:
notsponge [240]3 years ago
8 0
Each friendship bracelet will cost 35$ :)
GarryVolchara [31]3 years ago
4 0
If each bracelet is $7 then you just need to multiply $7 by the number of bracelets you want to buy.  So its 7x5 = $35
Answer $35
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Is (0,1) , (1,3) , (2,5), (3,7) a function?​
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A researcher wants to determine whether the number of minutes adults spend online per day is related to gender. A random sample
suter [353]

Answer:

The expected frequency for the cell E2,2 is = 33

Step-by-step explanation:

The given data is

Gender               | 0-30| 30-60| 60-90| 90+       Totals

Male                    | 23    |    35   |   76    |  46        180

<u> Female               |   31   |    42   |   46    |  16         135    </u>

<u>Totals                    54         77        122    62          315  </u>

<u />

The expected frequency for the cell E2,2 is :

Expected for the (30-60 box for females)   =  Total of (30-6)/ (total )* females

                                                                      = ( 77/315)135= 33

Here p= 77/315 and n= 135

therefor X= pn = 33

χ²=  (33-42)²/33= 2.455  ( for the single value of E2,2=33)

Expected for the (30-60 box for males)   =  Total of (30-6)/ (total )* males

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χ²=  (44-42)²/44= 0.09

The critical region is  χ² (0.05) 3 ≥  χ²= 11.34

Let the null and alternate hypothesis be

H0:the number of minutes spent online per day is not related to gender

against

Ha: the number of minutes spent online per day is related to gender

The single value of χ² for E2,2 = 2.45 is less than the critical value of 11.34.  

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Pls help ill give brainly ​
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