Answer:
31.42cm
Step-by-step explanation:
C=2πr=2·π·5≈31.41593cm
Answer: $12
Step-by-step explanation: 16 - 4 = 12
Answer:
Step-by-step explanation:
Given
- w = 13 ft
- l = x ft
- P ≤ 54 ft
Using perimeter formula: P = 2(l + w)
- 2(13 + x) ≤ 54
- 13 + x ≤ 27
- x ≤ 27 - 13
- x ≤ 14 ft
There would need to be 5 movies rented for the total fees to be the same.
Answer:
a) The Margin of error = 2.6723
b)<em> The Standard error = 1.1299</em>
Step-by-step explanation:
Given data
x 109 105 112 110 115 106 108 109
Mean of x =
x⁻ = 109.25
x : 109 105 112 110 115 106 108 109
x- x⁻ : -0.25 -4.25 2.75 0.75 5.75 -3.25 -1.25 -0.25
(x-x⁻)²: 0.062 18.062 7.562 0.562 33.062 10.562 1.562 0.062
∑((x-x⁻)² = 71.5
The Standard deviation of sample S = 3.1959
a)
The Margin of error is determined by
Degrees of freedom γ =n-1 = 8-1 =7
<em>The Margin of error = 2.6723</em>
<em>b) The Standard error is determined by</em>
<em>The Standard error = 1.1299</em>