Answer:B
Step-by-step explanation:
Answer:
Individual package would be 3.83
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Answer: the height of the cylinder is 24
Step-by-step explanation:
The formula for determining the total surface area of a cylinder is expressed as
Total surface area = 2πr² + 2πrh
Where
r represents the radius of the cylinder.
h represents the height of the cylinder.
π is a constant whose value is 3.14
From the information given,
Total surface area = 56π
radius = 2
Therefore,
56π = (2 × π × 2²) + 2 × π × h
56π = 8π + 2πh
56 × 3.14 = (8 × 3.14) + (2 × 3.14 × h)
175.84 = 25.12 + 6.28h
6.28h = 175.84 - 25.12 = 150.72
h = 150.72/6.28
h = 24
3* 3.14
= 9.42
9.42 * 2
= 18.84
* (4+3)
= 131.88 cm.
Glad to help! :D
Answer:
Step-by-step explanation:
Given that a large trucking company wants to estimate the proportion of its tracker truck population with refrigerated carrier capacity.
Sample size n =200
Sample proportion p = 0.30
q = 1-p =0.70
Std error =
For 90% confidence interval, Z critical = ±1.645
Hence margin of error = ±1.645(0.0324) =±0.0533
Confidence interval = 0.30±0.0533
= (0.2467, 0.3533)