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Sidana [21]
2 years ago
8

Decide whether the pair of lines is parallel, perpendicular, or neither. 3x-6y=2 and 18x+9y=8

Mathematics
1 answer:
Ray Of Light [21]2 years ago
8 0

Answer: perpendicular

Step-by-step explanation:

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Step-by-step explanation:

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Weights were recorded for all nurses at a particular hospital, the mean weight for an individual nurse was 135 lbs. with a stand
Aloiza [94]
Given:
population mean, &mu; =135
population standard deviation, &sigma; = 15
sample size, n = 19

Assume a large population, say > 100,
we can reasonably assume a normal distribution, and a relatively small sample.
The use of the generally simpler formula is justified.

Estimate of sample mean
\bar{x}=\mu=135

Estimate of sample standard deviation
\s=\sqrt{\frac{\sigma^2}{n}}
=\sqrt{\frac{15^2}{19}}=3.44124  to 5 decimal places.

Thus, using the normal probability table,
P(125
=P(\frac{125-135}{3.44124}
=P(-2.90593
=P(Z
=P(Z

Therefore 
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P(125<X<130)=0.0731166-0.0018308
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2 years ago
Goods include kennels, leads, toys and similar accessories for pets.
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Answer:

Where is the table? Is there supposed to be an image attached?

Step-by-step explanation:

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