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Pavel [41]
3 years ago
8

Q1.is the given value of the variable , s, a solution to the inequality?s > -2.25; s = -2.2

Mathematics
1 answer:
ad-work [718]3 years ago
6 0

Answer:

1.Yes

Step-by-step explanation:

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According to the American Academy of Ophthalmology, 25% of Americans have brown irises. A random survey of students at a local c
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Answer:

2.49

Step-by-step explanation:

Given  X= 58

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P = 25% = 0.25.

P' = \frac{X}{N} = \frac{58}{175} = 0.3314\\Z = \frac{P'-P}{\sqrt{\frac{pq}{N} } }

Now plugging the values we get

= \frac{0.3314-0.25}{\sqrt{\frac{0.25\times0.75}{175} } }

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8 0
3 years ago
A unit vector lies in the xy plane, at an angle of 153 degrees from the x axis, with a positive y component. What is the unit ve
tino4ka555 [31]

Answer:

unit vector = -0.891i + 0.454j

Step-by-step explanation:

Given that;

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{ second quadrant }

so, x and y components of the vector are;

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y component = 1 × sin(153°) = 0.454

⇒ -0.891i + 0.454j

Therefore, unit vector = -0.891i + 0.454j

3 0
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