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2 years ago

Does anyone know the answer to any of these

Mathematics

1 answer:

Anna11 [10]2 years ago

7 0

Answer:

nvkjvdvjd

Step-by-step explanation:

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Which is the area of a parallelogram with a base of 13 centimeters and a height of 3 centimeters?

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How many pairs of parallel faces are shown? 3 5 4 6

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The table shows the charges for a catering service. Based on the pattern in the table, calculate the charge for catering a party

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Customers arrive at a grocery store at an average of 2.1 per minute. Assume that the number of arrivals in a minute follows the

Black_prince [1.1K]

Answer:

a) P(2)=0.270

b) P(X>3)=0.605

c) P=0.410

Step-by-step explanation:

We know that customers arrive at a grocery store at an average of 2.1 per minute. We use the Poisson distribution:

$\boxed{P(k)=\frac{\lambda^k \cdot e^{-\lambda}}{k!}}$

a) In this case: $\lambda=2.1$

$P(2)=\frac{2.1^2 \cdot e^{-2.1}}{2}\\\\P(2)=0.270$

Therefore, the probability is P(2)=0.270.

b) In this case: $\lambda=2\cdot 2.1=4.2$

$P(X>3)=1-P(X\leq 3)\\\\P(X>3)=1-\sum_{x=0}^3 \frac{4.2^x \cdot e^{-4.2}}{x!}\\\\P(X>3)=1-0.395\\\\P(X>3)=0.605$

Therefore, the probability is P(X>3)=0.605.

c) We know that two customers came in in the first minute. That is why we calculate the probability of at least 5 customers entering the other 2 minutes.

In this case: $\lambda=2\cdot 2.1=4.2$

$P(X\geq 5)=1-P(X$

Therefore, the probability is P=0.410.

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3 years ago

State if these 3 numbers can be the measures of the sides of a triangle.

ser-zykov [4K]

Answer: yes it can be a measure of a triangle

I hoped i helped you and can i have brainliest if it's ok? ty

Sides: a = 6 b = 11 c = 13

Area: T = 32.863

Perimeter: p = 30

Semiperimeter: s = 15

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