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den301095 [7]
3 years ago
9

Which is true regarding the function ?

Mathematics
2 answers:
Nostrana [21]3 years ago
8 0
It’s D. In order to find y/f(x),which in this case is (10),u have to plug in the x (-6)
USPshnik [31]3 years ago
7 0
The answer is D. 

F(x) = y is basically what you are looking for. You substitute x for x and find if it matches with Y. D is the only answer where the ordered pair (-6, 10) ,matches up with F(x) = y. 
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Ronald started solving the equation −2(2x−4)+3=6x+1.<br><br> Which is a correct next step?
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Step-by-step explanation:

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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 ;

Sample size, n = 263

np = 263 * 0.12 = 31.56

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

0.034 < 0.05 (Hence, There is a less than 5% chance of this happening by random variation.

7 0
2 years ago
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castortr0y [4]

Answer:

-11

Step-by-step explanation:

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Mama L [17]

Step-by-step explanation

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