Plz help me it’s emergency

Mathematics

1 answer:

OverLord2011 [107]3 years ago

5 0

Answer:

Profit Percentage: 67.29%

Step-by-step explanation:

Mia spent 50*$28 = $1,400

From batch 1, she earned $1,862

From batch 2, she earned $480

In total, her net earnings are $942

Net Profit Margin: 40.22%

Profit Percentage: 67.29%

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A parabola has a focus of F(2, -0.5) and a directrix of y=-1.5 P(x,y) represents any point on the parabola, while D(x, -1.5) rep

prohojiy [21]

The sketch of the parabola is attached below

We have the focus $(a,b) = (2, -0.5)$
The point $P(x,y)$
The directrix, c at $y=-1.5$

The steps to find the equation of the parabola are as follows

Step 1
Find the distance between the focus and the point P using Pythagoras. We have two coordinates; $(2, -0.5)$ and $(x,y)$ .
We need the vertical and horizontal distances to find the hypotenuse (the diagram is shown in the second diagram).
The distance between the focus and point P is given by
$\sqrt{ (x-a)^{2}+ (y-b)^{2} }$

Step 2
Find the distance between the point P to the directrix $c$ . It is a vertical distance between y and c, expressed as $y-c$

Step 3
The equation of parabola is then given as
$\sqrt{ (x-a)^{2}+ (y-b)^{2} }$ = $y-c$
$(x-a)^{2}+ (y-b)^{2}= (y-c)^{2}$ ⇒ substituting a, b and c
$(x-2)^{2}+ (y--0.5)^{2} = (y--1.5)^{2}$
$(x-2)^{2}+ (y+0.5)^{2}= (y+1.5)^{2}$ ⇒Rearranging and making $y$ the subject gives

$y= \frac{ x^{2} }{2} -2x+1$

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3 years ago

What is th quotenit for r an 12

kramer

Having The Lack Of Information, We Can Only Give You An Equation.

So:

Quotient = Division.

R / 12 Is The Equation.

(If This Is Not What You Need, Put In More Info, And I Can Solve It. ;) <span />

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2 years ago

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Since 5 of the 8 students are boys, the fraction would be 5/8. The fraction would roughly be around 63%

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2 years ago

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Someone please help. i will mark as brainliest if right :)

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Answer: