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Gemiola [76]
3 years ago
12

Please answer this probability question.

Mathematics
1 answer:
n200080 [17]3 years ago
7 0

Answer:

the answer is 2

Step-by-step explanation:

labelled

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If 1/3 lb of meat is used to make a hamburger, how much is needed to make 16 hamburgers? ​
guapka [62]

Answer: you would have to multiply 1/3 time 16 and you get 5.33333 and your answer would be: 5.3 hope this helped !

Step-by-step explanation:

3 0
3 years ago
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a norman window has the shape of a rectangle surmounted by a semicircle. if the perimeter of the window is 25 feet, express the
sp2606 [1]

The area of the window is \frac{25x}{2} -(1 +\frac{\pi}{2} )\frac{x^2}{2}

The shape of the Norman window is described as a rectangle surmounted by a semicircle.

Let 'x' be the width of the window.

Then this width corresponds to the diameter of the semicircle.

That is, radius of the semicircle = x/2

Now given the perimeter of the whole window = 25 ft

This perimeter is equal to the sum of 3 sides of the rectangle and the perimeter of the semicircle.

Perimeter of the semicircle = \frac{2\pi r}{2} = \frac{\pi x}{2} , where r is the radius of the semicircle.

Now let 'y' be the length of the window.

Then sum of three sides of the window = 2y + x

So 2y + x + \frac{\pi x}{2} = 25

Therefore, y =( 25 - x - \frac{\pi x}{2} ) / 2

Area of the window = Area of the semicircle + Area of the rectangle =

 \frac{\pi x^2}{8} +xy = \frac{\pi x^2}{8} + x( 25 - x - \frac{\pi x}{2} ) / 2\\ = \frac{\pi x^2}{8} + (25x - x^2 - \frac{\pi x^2}{2} ) / 2

 So Area of the window = \frac{25x}{2} -(1 +\frac{\pi}{2} )\frac{x^2}{2}

Learn more about area of circle and rectangle at brainly.com/question/4694841

#SPJ4

7 0
2 years ago
A survey of 100 similar-sized hospitals revealed a mean daily census in the pediatrics service of 27 with a standard deviation o
Vinil7 [7]

Answer:

We conclude that the mean is greater than 25.  

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 25

Sample mean, \bar{x} = 27

Sample size, n = 100

Alpha, α = 0.05

Sample standard deviation, s = 6.5

First, we design the null and the alternate hypothesis

H_{0}: \mu = 25\\H_A: \mu> 25

We use One-tailed(right) z test to perform this hypothesis.

Formula:

z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }

Putting all the values, we have

z_{stat} = \displaystyle\frac{27 - 25}{\frac{6.5}{\sqrt{100}} } = 3.07

Now, z_{critical} \text{ at 0.05 level of significance } = 1.645

Since,  

z_{stat} > z_{critical}

We reject the null hypothesis and accept the alternate hypothesis.

Thus,  the mean is greater than 25.

3 0
3 years ago
56 successful students is 70​% of what number of​ students?
ivanzaharov [21]

Answer:

56 is 70% of 80 students.

Step-by-step explanation:

70% = 0.7

56 divided by 0.7 = 80

4 0
3 years ago
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A horizontal line goes through the point (–7,10).
andrey2020 [161]

Answer:

The slope of the line is zero

Another point on the line is (3,10).

The equation of the line is y = 10.

Step-by-step explanation:

an i get brainliest plz

3 0
3 years ago
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