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UNO [17]
3 years ago
8

(2x3 + 7x2 + x) + 2(x2 - 2x - 6) splifly

Mathematics
1 answer:
zimovet [89]3 years ago
8 0

Answer:

2x³ + 3(3x - 4)(x + 1)

Step-by-step explanation:

(2x³ + 7x² + x) + 2(x² - 2x - 6)

2x³ + 7x² + x + 2x² - 4x - 12

2x³ + 9x² - 3x - 12

2x³ + 3(3x² - x - 4)

2x³ +3(3x - 4)(3x + 3)/3

2x³ + (3x - 4)(3x + 3)

2x³ + 3(3x - 4)(x + 1)

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3 years ago
The population distribution of SAT scores is normal with a mean of μ=500 and a standard deviation of SD=100. For example, what i
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Answer:

0.02275

Step-by-step explanation:

We use the z score formula to solve for this

z-score is given as: z = (x-μ)/σ

where x is the raw score,

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σ is the population standard deviation

In the above question:

mean of μ=500

a standard deviation of SD=100

raw score x = 700

Hence, z score = (700 - 500)/ 100

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3 years ago
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svlad2 [7]

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Step-by-step explanation:

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