Step-by-step explanation:
Confidence interval = mean ± margin of error
CI = μ ± ME
The mean is μ = 8.7.
Margin of error = critical value × standard error
ME = CV × SE
At 95% confidence and 9 degrees of freedom, CV = 2.262.
SE = s / √n
SE = 3.3 / √10
SE = 1.04
The margin of error is:
ME = 2.262 × 1.04
ME = 2.36
CI = 8.7 ± 2.36
CI = (6.34, 11.06)
Answer for part a: 10 centimeters
answer for part b: 13.9 inches
Step-by-step explanation:
Let base of triangle be x m.
Therefore, altitude =( x + 2)m
Therefore
Altitude = 10 m
Base = 8 m
1207 divided by 7 is equal to 172.4286
Answer:
9
Step-by-step explanation:
the question is practically "how many 1/12 sandwiches fit inside a 3/4 sandwich"
this calls for division
3/4 / 1/12
"flip & switch"
3/4 * 12/1
36/4
9
you will have 9 small sandwiches