(It's late cuz no one answered it. Please Solve! I already posted this so don't answer both questions for points.)

Mathematics

1 answer:

earnstyle [38]3 years ago

7 0

Answer: The slope is 80.75.

Step-by-step explanation: You just use the formula for rise over run.

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I need helppp I’m stuck

Nikitich [7]

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L (1,-1)
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2 years ago

Area and explanation thanks

adoni [48]

Area of the rectangle is 18•3= 54
Area of the triangle is (10-3)•(18-6)/2= 7•12/2= 42
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3 years ago

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How was the question 7+7+7 = 21 and 3×7 = 21 related ?

kifflom [539]

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=21

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3 years ago

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Plsss helpppp what’s the shape?

Alborosie

The shape shown here is a triangular pyramid, because it has a triangular base and a pointy tip.

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3 years ago

The random variable X is exponentially distributed, where X represents the waiting time to be seated at a restaurant during the

erastova [34]

Answer:

The probability that the wait time is greater than 14 minutes is 0.4786.

Step-by-step explanation:

The random variable X is defined as the waiting time to be seated at a restaurant during the evening.

The average waiting time is, β = 19 minutes.

The random variable X follows an Exponential distribution with parameter $\lambda=\frac{1}{\beta}=\frac{1}{19}$ .

The probability distribution function of X is:

$f(x)=\lambda e^{-\lambda x};\ x=0,1,2,3...$

Compute the value of the event (X > 14) as follows:

$P(X>14)=\int\limits^{\infty}_{14} {\lambda e^{-\lambda x}} \, dx=\lambda \int\limits^{\infty}_{14} {e^{-\lambda x}} \, dx\\=\lambda |\frac{e^{-\lambda x}}{-\lambda}|^{\infty}_{14}=e^{-\frac{1}{19} \times14}-0\\=0.4786$

Thus, the probability that the wait time is greater than 14 minutes is 0.4786.

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2 years ago