Answer:
exact form: -8/3
decimal form: -2.6666666
mixed number: -2 2/3
Step-by-step explanation:
Hundreds tens ones. tenths hundredths thousandths
111.11
What are you learning about?
Answer:
The answer is 161.5
Step-by-step explanation:
Step-by-step explanation: The top half of the kite is 6 in times 17 in because 8.5 + 8.5 = 17 so its 102. Half of 102 is 51 so 51 is the area of the top half. The bottom half is 13 in times 17 in which equals 221. Half of 221 is 110.5. Then 110.5 + 51 = 161.5... So your answer is 161.5 square inches.
Answer:
The 80% confidence interval for the average net change in a student's score after completing the course is (15.4, 26.3).
Step-by-step explanation:
The net change in 7 students' scores on the exam after completing the course are:
S = {37 ,12 ,12 ,17 ,13 ,32 ,23}
Compute the sample mean and sample standard deviation as follows:
As the population standard deviation is not known, a t-interval will be formed.
Compute the critical value of <em>t</em> for 80% confidence interval and 6 degrees of freedom as follows:
*Use a <em>t</em>-table.
Compute the 80% confidence interval for the average net change in a student's score after completing the course as follows:
Thus, the 80% confidence interval for the average net change in a student's score after completing the course is (15.4, 26.3).