Which expression is the result of factoring the expression below by taking out its greatest common factor?
1 answer:
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Answer:
C. The electric car is not moving at 0 seconds and 12 seconds.
Step-by-step explanation:
Given:
The table given is:
x 0 2 4 6 8 10 12
y 0 45 72 81 72 45 0
From the above table, we observe that the car starts from rest and its speed increases from 0 to 6 seconds, the maximum speed being 81 mph.
After 6 seconds, the speed of the car goes on decreasing till it stops at time equal to 12 seconds.
So, the speed of the car at the start when is 0 mph as it is at rest at that time.
Also, when the time is , the car has come to a stop and thus its speed has reduced to 0 mph again. So, the car is not moving after 12 seconds.
From the above conclusion, we can say that only option C is correct.
The electric car is not moving at 0 seconds and 12 seconds.
Answer:
Since the p value is less than the significance level of 0.05 we have enough evidence to reject the null hypothesis in favor of the claim
And the best conclusion for this case would be:
b)The p-value is 0.008, indicating sufficient evidence for his claim.
Step-by-step explanation:
Information provided
represent the sample mean fould against
represent the sample standard deviation
sample size
represent the value that we want to test
represent the significance level for the hypothesis test.
t would represent the statistic (variable of interest)
represent the p value for the test (variable of interest)
System of hypothesis
We need to conduct a hypothesis in order to check if the true mean is higher than 11.5 fouls per game:
Null hypothesis:
Alternative hypothesis:
The statistic is given by:
(1)
The statistic is given by:
P value
The degreed of freedom are given by:
Since is a one side test the p value would be:
Since the p value is less than the significance level of 0.05 we have enough evidence to reject the null hypothesis in favor of the claim
And the best conclusion for this case would be:
b)The p-value is 0.008, indicating sufficient evidence for his claim.