Which story problems could be solved using the given equation?
2 answers:
You might be interested in
The confidence interval can be calculated from the margin of error, and vice versa,
The margin of error of the confidence interval is 2.156
The confidence interval is given as:
The formula of confidence interval is:
Where E represents the margin of error.
So, by comparison:
Multiply
Hence, the margin of error of the confidence interval is 2.156
Read more about margin of errors at:
Answer:
Yes, 1 kg of paint is enough to completely paint the inside and outside surfaces of the vessel.
Step-by-step explanation:
For the given vessel without a lid,
diameter = 0.4 x 1.5
= 0.6 m
radius = =
= 0.3 m
Total external surface area of the vessel = 2rh +
= [2 x x 0.3 x 1.5] + [
x
]
= 2.8286 + 0.2829
= 3.1112
Total external surface area of the vessel is 3.1112 square meter.
Total internal and external surface area = 2 x 3.1112
= 6.2224
But for 1 square meter, 150 g of paint is consumed. Thus;
for 6.2224 = 6.2224 x 150 g
= 933.36 g
Thus, 6.2224 of area would require 933.36 g of paint.
So that,
= 0.93336 kg
Therefore, 1 kg of paint is enough to completely paint the inside and outside surfaces of the vessel.