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Tanzania [10]
3 years ago
11

Maria solved the area problem below. What was her error?

Mathematics
2 answers:
Law Incorporation [45]3 years ago
8 0

Answer:

o my quizlet page its b

Step-by-step explanation:

just olya [345]3 years ago
4 0

Answer:

b

Step-by-step explanation:

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Bart practice his trumpet 1 1/4 hours each day how many hours will be practice in 6 days?
ElenaW [278]
He practices 1.25 hours every day which we want to multiply by 6 days

1.25x6=7.5 hours
5 0
3 years ago
Read 2 more answers
The original price of a new iPhone is $258.00. If the iPhone is marked down 11%, what is the new price?
Leona [35]

Answer: $229.62

Step-by-step explanation:

mark down 11 %= (1-11%)

original price × percent left after mark down=new price

 258.00 × (1-11%)= $229.62

Hope this helps!! :)

Please let me know if you have any question

4 0
3 years ago
A researcher drilled a hole in a die and filled it with a lead​ weight, then proceeded to roll it 209 times. The observed freque
ddd [48]

Answer:

Step-by-step explanation:

Given that the observed frequencies for the outcomes as follows:

To check this we can use chi square goodness of fit test.

H_0: equally likely\\H_a: not equally likely

(Two tailed test at 5% significance level)

Assuming equally likely expected observations are found out and then chi square is calculated as (0-E)^2/E

Df = 6-1 =5

Outcome Frequency Expected frequency (Obs-exp)^2/Exp

   

1 36 34.83333333 0.03907496

2 30 34.83333333 0.670653907

3 41 34.83333333 1.091706539

4 40 34.83333333 0.766347687

5 23 34.83333333 4.019936204

6 39 34.83333333 0.498405104

   

209 209          7.086124402

p value =0.214

Since p >alpha, we accept null hypothesis

It appears that the  loaded die does not behave differently than a fair​ die at 5% level of significance

5 0
3 years ago
Please answer a few questions. :)
hichkok12 [17]
Sorry I can't read it,
 otherwise i would be happy to help you

8 0
3 years ago
Need help on homework <br><br> #8
irakobra [83]
I would say the cube because it takes more space (volume) than the row of cubes


"Not sure if it makes sense but, eh...."
7 0
4 years ago
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