3 years ago

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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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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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:

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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

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Therefore, unit vector = -0.891i + 0.454j

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