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3 years ago

5+4x. X = 10 pls I really need help-

Mathematics

2 answers:

Elodia [21]3 years ago

6 0

Answer:

Oki! Mizuki here to help with this problem!

45 should be the correct answer!

Step-by-step explanation:

5 + 4x

let's replace x with 10!

5 + 4 x 10 =

5 + 40 =

inna [77]3 years ago

4 0

Answer:

Step-by-step explanation:

5+4 * 10, plug in 10 for x

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Each day, Robin commutes to work by bike with probability 0.4 and by walking with probability 0.6. When biking to work injuries

kvasek [131]

Answer:

64.65% probability of at least one injury commuting to work in the next 20 years

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}
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In which

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e = 2.71828 is the Euler number

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Each day:

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If he walks to work, 0.02 injuries per year.

20 years.

$\mu = 20*(0.4*0.1 + 0.6*0.02) = 1.04$

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$P(X = 0) + P(X \geq 1) = 1$

We want $P(X \geq 1)$ . Then

$P(X \geq 1) = 1 - P(X = 0)$

In which

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}
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$P(X = 0) = \frac{e^{-1.04}*1.04^{0}}{(0)!} = 0.3535
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$P(X \geq 1) = 1 - P(X = 0) = 1 - 0.3535 = 0.6465$

64.65% probability of at least one injury commuting to work in the next 20 years

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3 years ago

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