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2 years ago

1. Find the circumference of a circle with a radius of 12 cm. Round decimal answer to the

Mathematics

2 answers:

Nana76 [90]2 years ago

5 0

Answer:

b. 75.40

Step-by-step explanation:

The circumference of a circle is the perimeter of the circle. To find the perimeter we would use the formula ⇒ 2 × π × r ⇔ or π × d ← where r is the radius and d is the diameter .

So lets substitute in the values

2 × π × r

Radius = 12

2 × π × 12 = 24 π = 75.3982236862

So the answer is b. 75.40

Wewaii [24]2 years ago

5 0

Answer:

b. 75.40

Step-by-step explanation:

Circumference = 2pi × r

= 2pi × 12

= 24pi

= 75.39822369

Nearest hundredth: 75.40 cm

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Complete factorization x^3-2x^2+x-2

disa [49]

Answer:

${ \tt{ {x}^{3} - 2 {x}^{2} + x - 2 }} \\ = { \tt{(x - 2)(x - i)(x + i)}}$

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2 years ago

The sum of the measures of the interior angles of a regular polygon is 5400. find the number of sides in the polygon.

Svet_ta [14]

Sum of Interior Angles = (Number of Sides -2) • 180 degrees

Number of Sides = [Sum of Interior Angles / 180 degrees] +2

Number of Sides = (5,400 / 180) +2

Number of Sides = 32

Source:
http://www.1728.org/polygon.htm

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3 years ago

Johnny spent $28.50 at a parking garage in downtown Asheville. The garage

just olya [345]

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Step-by-step explanation:

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3 years ago

[tex]\sqrt{x} 196 can someone help me

Maslowich

Answer:

Step-by-step explanation:

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2 years ago

Read 2 more answers

Occasionally an airline will lose a bag. Suppose a small airline has found it can reasonably model the number of bags lost each

julia-pushkina [17]

Answer:

a) The probability that the airline will lose no bags next monday is 0.1108

b) The probability that the airline will lose 0,1, or 2 bags next Monday is 0.6227

c) I would recommend taking a Poisson model with mean 4.4 instead of a Poisson model with mean 2.2

Step-by-step explanation:

The probability mass function of X, for which we denote the amount of bags lost next monday is given by this formula

$P(X=k) = \frac{e^{-2.2} * {2.2}^k }{k!}$

$P(X=0) = \frac{e^{-2.2} * {2.2}^0 }{0!} = 0.1108$

The probability that the airline will lose no bags next monday is 0.1108.

b) Note that $P(X \in \{0,1,2\} = P(X=0) + P(X=1) + P(X=2)$ . And

$P(X=0)+P(X=1)+P(X=2) = e^{-2.2} * (1 + 2.2 + 2.2^2/2) = 0.6227$

Therefore, the probability that the airline will lose 0,1, or 2 bags next Monday is 0.6227.

c) If the double of flights are taken, then you at least should expect to loose a similar proportion in bags, because you will have more chances for a bag to be lost. WIth this in mind, we can correctly think that the average amount of bags that will be lost each day will double. Thus, i would double the mean of the Poisson model, in other words, i would take a Poisson model with mean 4.4, instead of 2.2.

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3 years ago