How do u find this?

Mathematics

1 answer:

nasty-shy [4]1 year ago

5 0

Answer:

Step-by-step explanation:

The volume of a prism =Base Area× Height.

6 * 9 * 8 =

54 * 8 =

432 cm³

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Question 3 what is the answer

RSB [31]

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2 years ago

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Let P be the parabola with focus (0,4) and directrix y=x.Write an equation whose graph is a parabola with a vertical directrix t

prisoha [69]

Answer:

y²=4√2.x

Step-by-step explanation:

The focus is at (0,4) and directrix is y=x or x-y =0, for a parabola P.

The distance between the focus and the directrix of the parabola P is

$\frac{ |0-4| }{\sqrt{(1)^{2}+(-1)^{2} } }$ = $\frac{4}{\sqrt{2} }$

{Since the perpendicular distance of a point (x1, y1) from the straight line ax+by+c =0 is given by $\frac{ |ax1+by1+c| }{\sqrt{a^{2}+b^{2} } }$ }

Let us assume that the equation of the parabola which is congruent with parabola P is y²=4ax

{Since the parabola has vertical directrix}

Hence, the distance between focus and the directrix is 2a = $\frac{4}{\sqrt{2} }$ , {Two parabolas are congruent when the distances between their focus and the directrix are same}

⇒ a=√2

Therefore, the equation of the parabola is y²=4√2.x (Answer)

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2 years ago

Complete the table.<br><br> Original Price Percent of Discount Sale Price<br> $80 20% $

Svetach [21]

Answer:

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Step-by-step explanation:

80x.20=16

80-16=64

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