Mathematics: 3(x+7)^2=27 solve using square roots or by factoring

3(x+7)^2=27 solve using square roots or by factoring - id3722711163394, jalenshayewilliams

jchse4365

12.02.2021

Step-by-step explanation:

3(x+7)² = 27

(x+7)² = 9

x+7 = ±√9 = ±3

x = -7±3 = -4, -10

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Rattley6223

20.01.2023

P(X=8)=11.2599 %

Step-by-step explanation:

According to the Poisson Model:

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

where:

λ is the average of cars sold

x is the number of cars sold tomorrow

P is the probability of cars sold tomorrow

In our case:

Given data:

λ=10 cars

x=8 cars

Required:

The probability that the dealer sells 8 cars tomorrow=?

Solution:

$P=\frac{e^{-\lambda}\lambda^{x}}{x!}\\ P=\frac{e^{-10}10^{8}}{8!}\\P=0.112599\\P=11.2599\%$

P(X=8)=11.2599 %

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