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KengaRu [80]
3 years ago
6

It is called a _____ when each person in the population has an equal chance of being selected.random sampleself-selected sampleb

iased sampleconvenience sample
Mathematics
1 answer:
Georgia [21]3 years ago
5 0
It's a random sample
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Recall that in a 30 – 60 – 90 triangle, if the shortest leg measures x units, then the longer leg measures xStartRoot 3 EndRoot
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The area of the shaded region is  \rm (150\sqrt{3} \ - 75\pi ) \ feet^2 option first is correct.

It is given that a circle is inscribed in a regular hexagon with sides of 10 feet.

It is required to find the shaded area (missing data is attached shown in the picture).

<h3>What is a circle?</h3>

It is defined as the combination of points that and every point has an equal distance from a fixed point ( called the center of a circle).

We have a hexagon with a side length of 10 feet.

We know the area of the hexagon is given by:

\rm A = \frac{3\sqrt{3} }{2} a^2  where a is the side length.

\rm A = \frac{3\sqrt{3} }{2} 10^2 ⇒ 150\sqrt{3} \rm feet^2

We have the shortest length = x feet and from the figure:

2x = 10

x = 5 feet

The radius of the circle r = longer leg

\rm r = x\sqrt{3} \Rightarrow 5\sqrt{3} feet

The area of the circle a = \pi r^2  ⇒ \pi (5\sqrt{3} )^2 \Rightarrow 75\pi \ \rm feet^2  

The area of the shaded region = A - a

\rm =(150\sqrt{3} \ - 75\pi ) \ feet^2

Thus, the area of the shaded region is  \rm (150\sqrt{3} \ - 75\pi ) \ feet^2

Learn more about circle here:

brainly.com/question/11833983

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2 years ago
Please help I’m taking the test and it’s due soon, all you have to do is fill in the blank, it’s really easy if you know geo
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Answer:

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Step-by-step explanation:

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Value of m varies directly as value of n and n=5 when m=12. What is n when m=18?
ohaa [14]
Simplify the problem down, so:

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Now m is a factor of 18. Multiply each number by 3.
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PLZZZ HELP DUE IN 10 minutes
Kobotan [32]
Number 2 is right triangle cuz is less than 90
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3 years ago
Please help me out thank you.​
murzikaleks [220]

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