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3 years ago

What equation represents this sentence? 5 less than a number is 12. n−5=12 5=12−n 5=n−12 5−n=12

Mathematics

1 answer:

Lana71 [14]3 years ago

8 0

Answer:

n-5=12

This is the answer

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The number of accidents that occur at a busy intersection is Poisson distributed with a mean of 4.5 per week. Find the probabili

Mariana [72]

Answer:

a) 0.01111

b) 0.4679

c) 0.33747

Step-by-step explanation:

We are given the following in the question:

The number of accidents per week can be treated as a Poisson distribution.

Mean number of accidents per week = 4.5

$\lambda= 4.5$

Formula:

$P(X =k) = \displaystyle\frac{\lambda^k e^{-\lambda}}{k!}\\\\ \lambda \text{ is the mean of the distribution}$

a) No accidents occur in one week.

$P(x =0)\\\\= \displaystyle\frac{4.5^0 e^{-4.5}}{0!}= 0.01111$

b) 5 or more accidents occur in a week.

$P( x \geq 5) = 1-\displaystyle \sum P(x$

c) One accident occurs today.

The mean number of accidents per day is given by

$\lambda = \dfrac{4.5}{7} = 0.64$

$P(x =1)\\\\= \displaystyle\frac{0.64^1 e^{-0.64}}{1!}= 0.33747$

5 0

3 years ago

1. Which line shows the first error in the solution?

Snowcat [4.5K]

Simple...

Which line shows the first error in the solution?

Line 3

This said, because...

5x-25=15

It'd be adding not subtracting-->>

5x-25=15-25 (No)

5x-25=15
+25 +25

5x=40 (Yes)

Thus, your answer.

3 0

3 years ago

I WILL BE CHOOSING THE BRAINLIEST! PLEASE HELP ME!

joja [24]

Answer:

If the triangle is similar by any axiom then the ratio of their sides will be equal then you can easily find the side of the triangle

You can also find it by congurency.

Hope this helps

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3 years ago

I need help ASAP please giving brainliest!

navik [9.2K]

Answer:

20.00

Step-by-step explanation:

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