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BlackZzzverrR [31]
3 years ago
6

2x – 3y = -4 x + 3y = 7 Find x and y

Mathematics
1 answer:
Margarita [4]3 years ago
8 0

Answer:

1

Step-by-step explanation:

3x=3 (y cancelled out)

x=1

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Answer:

The probability that the town has 30 or fewer residents with the illness = 0.00052.

Step-by-step explanation:

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The first step to do is to determine the expected number of people with disease. Thus, the expected number of people with disease = 74,000 × .000215 = 15.91.

Hence, the probability that the town has 30 or fewer residents with the illness = 1.23 × 10^-7 × 15.91^30/ 2.65253 × 10^-32 = 0.00052.

Note the formula used in the calculating the probability that the town has 30 or fewer residents with the illness =  e^-λ × λ^x/ x!

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What is u = kx + ух, for x
Ivahew [28]

Answer:

<h2>x=  \frac{u}{k + y}</h2>

Step-by-step explanation:

u = kx + ух

First of all factorize x out at the right side of the equation

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Divide both sides by ( k + y) to make x stand alone

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We have the final answer as

<h3>x =  \frac{u}{k + y}</h3>

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