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inn [45]
3 years ago
14

Which regular polygon with an apothem of 5 inches, will have a perimeter that is closest to the circumference of a circle with a

diameter of 10.8 inches?
Mathematics
1 answer:
gladu [14]3 years ago
7 0
Its octagon
hope i helped
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A random variable x takes four possible values, 0, 2, a, and b, where a and b are unknown numbers. if pr[x = 0] = 0.2, pr[x=2] =
Alexus [3.1K]
\displaystyle\sum_{x\in\{0,2,a,b\}}\mathbb P(X=x)=1
\mathbb P(X=0)+\mathbb P(X=2)+\mathbb P(X=a)+\mathbb P(X=b)=1
0.2+0.4+0.3+\mathbb P(X=b)=1
\implies\mathbb P(X=b)=0.1

\mathbb E(X)=\displaystyle\sum_{x\in\{0,2,a,b\}}x\mathbb P(X=x)=2.8
0\mathbb P(X=0)+2\mathbb P(X=2)+a\mathbb P(X=a)+b\mathbb P(X=b)=2.8
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a+b=6\implies0.3a+0.1b=0.2a+0.1(6)=2
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3 years ago
The graph of a quadratic function with vertex (3,-2) is shown in the figure below.
fgiga [73]

Answer:

Domain: all real numbers

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8 0
2 years ago
How many elements are in the union of five sets if the sets contain 10,000 elements each, each pair of sets has 1000 common elem
masya89 [10]

Answer:

40951

Step-by-step explanation:

Using the principles of inclusion - Exclusion

Where C(n,r)=n!/(n-r)!r!

Total elements in the five sets including number repetition is given as (10000)×C(5, 1) =10000× 5!/(5-1)!1!=10000×5=50000

Total Number of elements in each pair including number repetition of sets is given as

=(1000) × C(5, 2) =10000

Number of elements in each triple of sets is given as

=(100) × C(5, 3) =1000

Number of elements in every four sets

=(10) × C(5, 4)=50

Number of elements in every one set

(1) × C(5, 5)=1

Therefore total number of unique elements=50000-10000+1000-50+1

=40951

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3 years ago
Hey! please help i’ll give brainliest!
MakcuM [25]

Answer:

Hello! Your answer is, A) The arrow pointing to the right

Step-by-step explanation:

Hope I helped! Ask me anything if you have any questions! Brainiest plz! Hope you make an 100% and have a wonderful day! -Amelia♥

5 0
3 years ago
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Solve the equation: 6x - 8 = 2 + 9x - 1<br> A. 4<br> B. -6<br> C. -2<br> D. -3
madreJ [45]

Answer:

D

Step-by-step explanation:

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3 years ago
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