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kvv77 [185]
3 years ago
6

2x - 3 > 15 or 3 + 7x < 17

Mathematics
1 answer:
Viktor [21]3 years ago
6 0

Answer:

2x-3>15 and 3-7x>17 =  

3-7x>17

-7x>14

x<-2

Step-by-step explanation:

Sorry this is not a proper equation. I think you meant this equation.

2x-3>15 and 3-7x>17

for this equation the answer is

3-7x>17

-7x>14

x<-2

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Let S be the number of Brand S snowboards sold.
Let B be the number of Brand B snowboards sold.

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6 0
3 years ago
Suppose 12% of students are veterans. From a sample of 263 students, how unusual would it be to have less than 22 veterans?
kkurt [141]

Answer:

Yes, both np and n(1-p) are ≥ 10

Mean = 0.12 ; Standard deviation = 0.02004

Yes. There is a less than 5% chance of this happening by random variation. 0.034839

Step-by-step explanation:

Given that :

p = 12% = 0.12 ;

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n(1 - p) = 263(1 - 0.12) = 263 * 0.88 = 231.44

According to the central limit theorem, distribution of sample proportion approximately follow normal distribution with mean of p = 0.12 and standard deviation sqrt(p*(1 - p)/n) = sqrt (0.12 *0.88)/n = sqrt(0.0004015) = 0.02004

Z = (x - mean) / standard deviation

x = 22 / 263 = 0.08365

Z = (0.08365 - 0.12) / 0.02004

Z = −1.813872

Z = - 1.814

P(Z < −1.814) = 0.034839 (Z probability calculator)

Yes, it is unusual

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7 0
2 years ago
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Answer:

Associative

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When three or more numbers are multiplied, the product is the same regardless of  the way in which the numbers are grouped.

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Step-by-step explanation:

The statement x=y and y=z is a

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3.converse

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7 0
3 years ago
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3 is the right number in the coordinate pair, hence it it the range.

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3 years ago
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