Answer:
Step-by-step explanation:
the square root of what ever the area is. Area is length times width, but if all sides are the same then you just have to find the square root.
Plz Help! The area of the regular hexagon is 169.74 ft2. What is the perimeter, rounded to the nearest tenth? 24.2 ft 28.3 ft 48
.5 ft 56.8 ft
Area = 169.74 ft^2
radius = 7
How do you find the perimeter?
Area = 169.74 ft^2
radius = 7
How do you find the perimeter?
1 answer:
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Answer:
Mean = 94
Standard deviation = 1.12
The sampling distribution of the sample mean is going to be normally distributed, beause the size of the samples are 80, which is larger than 30.
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a random variable X, with mean and standard deviation
, the sample means with size n of at least 30 can be approximated to a normal distribution with mean
and standard deviation, which is also called standard error
In this problem, we have that:
By the Central Limit Theorem
The sampling distribution of the sample mean is going to be normally distributed, beause the size of the samples are 80, which is larger than 30.
Mean = 94
Standard deviation:
Answer:
Step-by-step explanation:
GIVEN: A fence is to be built to enclose a rectangular area of square feet. The fence along three sides is to be made of material that costs
dollars per foot, and the material for the fourth side costs
dollars per foot.
TO FIND: Find the dimensions of the enclosure that is most economical to construct.
SOLUTION:
Area of rectangular fence
let the length of fence
let the width of fence
let be the smaller side
Area of rectangular fence enclosure
cost of fence along three sides
cost of fence along fourth side
length of fence
cost of fence building
putting value of
to find minimum value differentiating the equation
Hence the dimensions of the enclosure that is most economical to construct are and