In the given figure, If the angles a and b are in the ratio 2:3, then angle cis:

Mathematics

1 answer:

tresset_1 [31]3 years ago

7 0

Answer:

figure is missing mate

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During off hours, cars arrive at a tollbooth on the East-West toll road at an average rate of 0.5 cars per minute. The arrivals

Norma-Jean [14]

Answer:

$P(X=3) = 2.5^3 \frac{e^{-2.5}}{3!}=0.214$

Step-by-step explanation:

Definitions and concepts

The Poisson process is useful when we want to analyze the probability of ocurrence of an event in a time specified. The probability distribution for a random variable X following the Poisson distribution is given by:

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

And the parameter $\lambda$ represent the average ocurrence rate per unit of time

For this case we know that $\lambda =0.5 cars/min$

And we want the probability that during the next five minutes, three cars will arrive, so then our rate becomes:

$\lambda = 0.5 \frac{cars}{min}* 5 min = 2.5 cars$

And we want this probability:

$P(X=3)$

And if we use the pmf we got:

$P(X=3) = 2.5^3 \frac{e^{-2.5}}{3!}=0.214$

6 0

4 years ago

What is the Y-intercept of the following quadratic graph?<br> (1 Point)

Vitek1552 [10]

Answer: 1

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Peter hired a cleaning company to clean his house. The cleaning company charges a fixed fee of $15 plus $17 per hour to clean a

almond37 [142]

Answer:

5 (for c only)

Step-by-step explanation:

for c:

1st cleaning company: $y=17x+15$

2nd cleaning company: $y=20x$

set up as a system of equations. for them to cancle out make the y of one equation negative. I'll be making the second one negative ( it doesn't matter though)

it will look like:

$y=17x+15$

$-y=-20x$