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Paladinen [302]
3 years ago
14

Please help! question is in the pic

Mathematics
1 answer:
steposvetlana [31]3 years ago
5 0

Answer: 2 + 1 = 3      2 x 1 =2

Step-by-step explanation: + 7 = 7

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A circle has a diameter of 121 inches. Which equation can be used to find the radius of this circle? r=121/2π r=1/2(121) r=121π
drek231 [11]
The radius of a circle is always half its diameter.

Therefore the radius of a circle with a diameter of 121 inches is 1/2(121).

Hence, the correct answer is r = 1/2 (121)
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4 years ago
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x2 the left side and x3 the right side of the equation

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2 Points<br> Evaluate 5 – (4 + 2)2
Ghella [55]

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Step-by-step explanation:

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4 years ago
In 1898 L. J. Bortkiewicz published a book entitled The Law of Small Numbers. He used data collected over 20 years to show that
attashe74 [19]

Answer:

(a) The probability of more than one death in a corps in a year is 0.1252.

(b) The probability of no deaths in a corps over 7 years is 0.0130.

Step-by-step explanation:

Let <em>X</em> = number of soldiers killed by horse kicks in 1 year.

The random variable X\sim Poisson(\lambda = 0.62).

The probability function of a Poisson distribution is:

P(X=x)=\frac{e^{-\lambda}\lambda^{x}}{x!};\ x=0,1,2,...

(a)

Compute the probability of more than one death in a corps in a year as follows:

P (X > 1) = 1 - P (X ≤ 1)

             = 1 - P (X = 0) - P (X = 1)

             =1-\frac{e^{-0.62}(0.62)^{0}}{0!}-\frac{e^{-0.62}(0.62)^{1}}{1!}\\=1-0.54335-0.33144\\=0.12521\\\approx0.1252

Thus, the probability of more than one death in a corps in a year is 0.1252.

(b)

The average deaths over 7 year period is: \lambda=7\times0.62=4.34

Compute the probability of no deaths in a corps over 7 years as follows:

P(X=0)=\frac{e^{-4.34}(4.34)^{0}}{0!}=0.01304\approx0.0130

Thus, the probability of no deaths in a corps over 7 years is 0.0130.

6 0
3 years ago
A box is full of buttons. The ratio of the red buttons to white buttons is 5 to 2. What does this mean?
Elanso [62]
B.for every 5 red buttons there are 2 white buttons
5 0
3 years ago
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