(5a-5)(2a+2) Find each product
2 answers:
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Option C:
It is throughout the line.
Solution:
Point on the larger shaded triangle are (0, 0) and (–6, –2).
Point on the smaller shaded triangle are (–6, –2) and (–9, –3).
Slope of the line:
Slope of the larger triangle:
Here,
Slope of the smaller triangle:
Here,
Both slopes are equal.
It is throughout the line.
Hence option B is the correct answer.
Answer:
There is no convincing evidence at α = 0.10 level that the average vertical jump of students at this school differs from 15 inches.
Step-by-step explanation:
We have to make a hypothesis test to prove the claim that the average vertical jump of students differs from 15 inches.
The null and alternative hypothesis are:
The significance level is 0.10.
The sample mean is 17 and the sample standard deviation is 5.37.
The degrees of freedom are df=(20-1)=19.
The t-statistic is:
The two-sided P-value for t=1.67 is P=0.11132.
This P-value is bigger than the significance level, so the effect is not significant. The null hypothesis can not be rejected.
There is no convincing evidence at α = 0.10 level that the average vertical jump of students at this school differs from 15 inches.