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crimeas [40]
3 years ago
8

A Norman window has the shape of a semicircle atop a rectangle so that the diameter of the semicircle is equal to the width of t

he rectangle. What is the area of the largest possible Norman window with a perimeter of 36 feet?
Mathematics
1 answer:
WITCHER [35]3 years ago
7 0
Https://answers.yahoo.com/question/index?qid=20091104081842AAhdJmS

That might have your answer 

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The manufacturer of a certain brand of aluminum foil claims that the amount of foil on each roll follows a Normal distribution w
lilavasa [31]

Answer:

Given that the manufacturers claim is true, the probability that the sample mean area is 249.6 ft.² or less is 0.42074

Step-by-step explanation:

The manufacturer claims that mean amount of foil on each roll, μ = 250 ft²

The standard deviation of the measured amount of foil per roll, σ = 2 ft.²

The number of rolls tested by the restaurant, n = 10 rolls

The mean measured by the restaurant, \overline x = 249.6

Taking the sample means as individual score, we have;

The z-score, of the sample mean is given as follows;

z=\dfrac{\overline x -\mu }{\sigma }

At \overline x = 249.6, we have;

z = (249.6 - 250)/2 = -0.2

Therefore, the probability for a mean less than or equal to 249.6, we have;

The probability, P = P(z < -0.2) = 0.42074

The probability that the sample mean area is 249.6 ft.² or less given that the manufacturers claim is true, P = 0.42074.

7 0
3 years ago
the library, post office, and gas station are all on elm street. the library is three miles west of the post office. the gas sta
Paha777 [63]

Answer:

distance apart= 9 miles

Step-by-step explanation:

The library , post office and gas station are all on elm street. The library is 3 miles away westward of the post office. The gas station is also 6 miles east of the post office. The distance between the library and the gas station can be computed below.

The post office is located at the middle between the library and the gas station. The library goes 3 miles westward of the post office while the gas station goes 6 miles eastward of the post office. The distance apart between the library and the gas station is the sum of the distance of the gas station from the post office and the distance of the library from the post office .

Therefore,

6miles  + 3 miles = 9 miles

7 0
3 years ago
An object on Jupiter weighs about 2.5 times as much as the same object would weigh on Earth. If a person on Earth weighs 135 lb.
siniylev [52]
That person would weigh 337.5 pounds

4 0
2 years ago
Read 2 more answers
Can anyone help me on this?
Ugo [173]

Answer:

x = 1, -5

Step-by-step explanation:

f(x) = x^2 +4x - 5

Factor the expression. Factoring is the process of writing out an expression by using other expressions such that when the other expression are multiplied together, the resulting expression is the initial expression.

f(x)=x^2+4x-5

f(x)=(x+5)(x-1)

Now set the expression equal to zero to find the roots (also known are zeros) of the expression. Use the zero product property to find the answers, the zero product property states that any number times zero is zero.

0=(x+5)(x-1)\\

x=-5,x=1

7 0
2 years ago
Please help me outtt
Semmy [17]

Answer:

2/9

2 to 9

Step-by-step explanation:

5 0
2 years ago
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