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3 years ago

Which scenario could be represented by the algebraic expression n/12?

Mathematics

2 answers:

lorasvet [3.4K]3 years ago

8 0

Answer:

the answer is

D:Ahmed wants to know how many floors are in an office building when each floor is 12 feet high.

Step-by-step explanation:

Anestetic [448]3 years ago

3 0

Answer:

Step-by-step explanation:

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A professor thinks that the students in her statistics class this term are less creative than most students at this university.

choli [55]

Answer:

It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.

Step-by-step explanation:

$\mu=35\\n=23\\\=x=33\\s=5\\\alpha=0.1$

1. Null and alternative hypothesis

$H_{0}:\mu=35\\H_{1}:\mu$

2. Significance level

$\alpha=0.1\\1-\alpha=0.99$

Freedom degrees is given by:

$v=n-1\\v=23-1=22$

For a sgnificance level of 0,01 and 22 freedom degrees, t-student distribution value is:

$t_{0.01;23}=-2. 5083$

3. Test statistic

$t=\frac{\=x-\mu}{\frac{s}{\sqrt{n} } }$

$t=\frac{33-35}{\frac{5}{\sqrt{23} } }$

$t=-1,918$

In this case, we have an one left tailed analysis, it means that null hypothesis is rejected if $t$

$-1.918>-2.5083$

Conclusion:

It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.

3 0

3 years ago

Noah drew 9 hearts, 6 stars, and 12 circles. What is the ratio of circles to hearts

olasank [31]

Answer:

12:9

Step-by-step explanation:

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A man buys 6 ½ of petrol daily. How many litres of petrol does he purchase in six days

nalin [4]

Answer:

39 liters

Step-by-step explanation:

6.5×6=39

so 39 litres

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2 years ago

PLEASE HELP!!!! I WILL GIVE BRAINLIEST TO THE FIRST ANSWER!!!

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3 years ago

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Domain and range of |x – 4| + 6

Maslowich

Answer:

x+2

Step-by-step explanation:

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3 years ago