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Sholpan [36]
3 years ago
10

3z3, z when z=9z=9z, equals, 9.

Mathematics
1 answer:
rewona [7]3 years ago
4 0

Answer:

g

Step-by-step explanation:

g

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The Department of Transportation would like to test the hypothesis that the average age of cars on the road is less than 12 year
puteri [66]

Answer:

z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29  

Step-by-step explanation:

information given

\bar X=10.6 represent the sample mean  

\sigma=4.1 represent the population standard deviation

n=45 sample size  

\mu_o =12 represent the value that we want to test  

\alpha=0.05 represent the significance level for the hypothesis test.  

z would represent the statistic

p_v represent the p value for the test

Hypothesis to test

We want to test if the true mean is less than 12, the system of hypothesis would be:  

Null hypothesis:\mu \geq 10  

Alternative hypothesis:\mu < 10  

The statistic is given by:

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}} (1)  

Replacing the info given we got:

We can replace in formula (1) the info given like this:  

z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29  

8 0
4 years ago
AMELIA IS SHARING 4 SLICES OF CHEESE WITH 5 FRIENDS. HOW MUCH CHEESE WILL EACH PERSON GET? EXPLAIN HOW YOU DECIDED.
Degger [83]

Answer:

well this is very easy all you have to do is divide 4 by 5 and you will get 4 with a remander of 1 or 0.8 or if this was a real life scenario then you could just take that extra slice and cut it in five ways. hope this helped! can i get brainiest plzz? im only ONE away from getting up to expert!

Step-by-step explanation:

3 0
3 years ago
I need help for b) so Please help
murzikaleks [220]

Answer:

5

Step-by-step explanation:

There are 5 domains

3 0
3 years ago
How many feet are traveled by a person riding once around the merry -go-round ? Clare says, " The radius of the merry -go-round
Naya [18.7K]
If this is a question about who is correct Clair is correct
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Geometry help! Will give brainliest!! The slope of line b is -1/6. What is the slope of the line parallel to line b?
atroni [7]

Answer:

-1/6

Step-by-step explanation:

Parallel lines are lines which have the exact same slope but different y-intercepts. This means any line which is parallel and does not cross will have the exact same slope of -1/6.

3 0
3 years ago
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