Find the distance across the lake. Assume the triangles are similar.
1 answer:
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The weight of first shipment = 1 ton 115 pounds
As we know, 1 ton = 2000 pounds, so
So, the weight of first shipment = pounds
The weight of second shipment = 1723 pounds 7 ounces
The weight of third shipment = 957 pounds 11 ounces
So, adding all three weights =
So, all three weights = 4795 pounds 18 ounces
As we know, 16 ounces = 1 pound, so
all three weights = 4795 pound 1 pound 2 ounces
All three weights = 4796 pounds 2 ounces
4796 could be wriiten as 4000 + 796
As we know, 2000 pound = 1 ton so
All three weight = 2 tons 796 pounds 2 ounces
So, the total weight of three shipments = 2 tons 796 pounds 2 ounces : Answer
Answer: 387
Step-by-step explanation:
Given : Standard deviation:
Margin of error : 0.15
Critical value for 80% confidence interval = 1.2816
Required minimum sample size :
Hence, the minimum sample size required to estimate the mean usage of water = 387