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3 years ago

Please help it's greatly apprecatied

Mathematics

1 answer:

Gala2k [10]3 years ago

3 0

Answer:

Step-by-step explanation: A on edge

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About 150,000 people live in a circular region with a population density of about

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Area of a circle = pi x r^2

Area of circle = 150,000/ 1578 = 95.06 square miles

95.06 = 3.14 x r ^2

Divide both sides by 3.14

R^2 = 30.27

Find the square root:

R = sqrt(30.27)

R = 5.5

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3 years ago

Assume that thermometer readings are normally distributed with a mean of degrees and a standard deviation of 1.00degrees C. A th

Andrew [12]

Answer:

0.2684 is the probability that the temperature reading is between 0.50 and 1.75.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 0 degrees

Standard Deviation, σ = 1 degrees

We are given that the distribution of thermometer readings is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(Between 0.50 degrees and 1.75 degrees)

$P(0.50 \leq x \leq 1.75)\\\\ = P(\displaystyle\frac{0.50 - 0}{1} \leq z \leq \displaystyle\frac{1.75-0}{1})\\\\ = P(0.50 \leq z \leq 1.75)\\= P(z \leq 1.75) - P(z < 0.50)\\= 0.9599 - 0.6915 = 0.2684 = 26.84\%$

0.2684 is the probability that the temperature reading is between 0.50 and 1.75.

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3 years ago

De cuantas formas distintas se puede formar una fila de 10 personas?

Rashid [163]

Answer:

Do you mean by standing together?

Step-by-step explanation:

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3 years ago

Complete the definition of the piecewise defined

Westkost [7]

Answer: a=1 b=3

Step-by-step explanation: the x for each of the points are 1 and 3

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2 years ago

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lys-0071 [83]

Answer:

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