Answer:
62 degrees
Step-by-step explanation:
Since we know 3 sides of the triangle, we can use law of cosines.
Take the arcos or cosine inverse
Which is about 62 degrees.
Sean began jogging to live a healthier lifestyle. On his first run, he ran one-half mile. He increased his workouts by adding tw
2 answers:
Answer with explanation:
→Total Distance Ran by Sean in his first run
→Number of workout in miles that is run increased in a month by Sean =2 Miles
→Equation Wrote by Sean is
f(x)= 0.5 + 2 x
This is a Linear equation in Slope Intercept form
y = m x +c
c=0.5
m=2,which is angle made by line with positive direction of X axis.
→y=Total Distance run after x months.
→x=Number of months=1,2,3,4,5........12,...
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Answer:
Step-by-step explanation:
Given that :
Mean = 7.8
Standard deviation = 0.5
sample size = 30
Sample mean = 7.3 5.4772
The null and the alternative hypothesis is as follows;
The test statistics can be computed as :
The p-value at 0.05 significance level is:
p-value = 1- P( Z < -5.4772)
p value = 0.00001
Decision Rule:
The decision rule is to reject the null hypothesis if p value is less than 0.05
Conclusion:
At the 0.05 significance level, there is sufficient information to reject the null hypothesis. Therefore ,we conclude that college students watch fewer movies a month than high school students.