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3 years ago

The equation of a parabola is 18(y−5)2=x+3 . What are the coordinates of the focus? (−3, 7) (−5, 5) (−1, 5) (−3, 3)

1 answer:

6 0

18(y-5)^2=x+3

do the algebra to make it into =x form

x=18y^2-180y+447

then you take the form of the focus, you can do the math

(-215/72, 5)

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20.4 is 120% of 17.

Step-by-step explanation:

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2 years ago

Out of 3000 students in a School of Public Health, 1500 students defined themselves regular dietary supplement users. If you tak

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The standard error of the proportion is 0.112.

Step-by-step explanation:

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In this problem

A success is a student defining themselves regular dietary supplement users. Our of 3000 students, 1500 do. So $p = \frac{1500}{3000} = 0.5$ .

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$S = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.5*0.5}{20}} = 0.112$

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3 years ago

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Answer:

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2 years ago

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