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3 years ago

Jamila is a roller coaster architect. She needs to determine the slope of a huge roller coaster

Mathematics

2 answers:

Whitepunk [10]3 years ago

7 0

The slope: -2
y -intercept: (0,-3)

Zina [86]3 years ago

4 0

The Slope= -2
The Y-intercept is= (0,-3)

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Assume that the number of customers who arrive at a water ice stand follows the Poisson distribution with an average rate of 6.4

Nady [450]

Answer:

18.88% probability that three or four customers will arrive during the next 30 minutes

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:

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

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given time interval.

Average rate of 6.4 per 30 minutes.

This means that $\mu = 6.4$

What is the probability that three or four customers will arrive during the next 30 minutes?

$P = P(X = 3) + P(X = 4)$

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

$P(X = 3) = \frac{e^{-6.4}*(6.4)^{3}}{(3)!} = 0.0726$

$P(X = 4) = \frac{e^{-6.4}*(6.4)^{4}}{(4)!} = 0.1162$

$P = P(X = 3) + P(X = 4) = 0.0726 + 0.1162 = 0.1888$

18.88% probability that three or four customers will arrive during the next 30 minutes

4 0

4 years ago

Find tan B. AB=17,BC=15 AC= 8

Aneli [31]

Answer:

a is the ans;8/15

Step-by-step explanation:

we have tanb = p/ b

so,by taking reference angle b we get,

p=8 and b= 15.

therefore; tanb=8/15

5 0

4 years ago

What does 1.6666 equal

lana66690 [7]

8333/5000 have a brainly day :)

8 0

3 years ago

Solve 55/z + 1/5 = 7/z

elena-14-01-66 [18.8K]

Answer:HEY THERE

Step-by-step explanation:

<h3>55/z + 1/5 = 7/z</h3><h3>>1/5=7/z -55/z</h3><h3>>1/5= -48/z[do cross multiplication]</h3><h3>>1*z=5*-48</h3><h3>>z=-240</h3><h3>this is ur answerr..hope it helped u^_^</h3>

3 0

3 years ago

3 2/3 + 2.3 = <br><br> 5 <br> 5 2/3 <br> 6 <br> 6 1/3

yawa3891 [41]

2.3 is the same as 2 1/3 is the same as 7/3

3 2/3 is the same as 11/3

11/3+7/3=18/3

18/3=6

Answer:6

4 0

2 years ago