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erastovalidia [21]
3 years ago
5

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

7 0
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 />
6 0
2 years ago
Read 2 more answers
There are 8 students on the minibus.Five of the students are boys. What fraction of the students are boys
Nimfa-mama [501]
Since 5 of the 8 students are boys, the fraction would be 5/8. The fraction would roughly be around 63%
5 0
2 years ago
Read 2 more answers
Someone please help. i will mark as brainliest if right :)
DIA [1.3K]

Answer:

The other factor is 5x-2

Step-by-step explanation:

Using the factorisation method:

Two numbers that multiply to give -10 and add to give +3:

+5 and -2

5x^{2} +5x-2x-2

5x(x+1) -2(x+1)

(x+1)(5x-2)

So the other factor is 5x-2

I'm not sure about the second part of the question but I hope you understood how to deal with the first part.

5 0
2 years ago
Evaluate 5+ (-11) - (-11)
SOVA2 [1]

Answer:

5

Step-by-step explanation:

To solve a problem with negatives, we use the following rule.

If it is like

x+(-y), it is equivalent to x-y

If the equation is like

(-x)-(-y), it is equivalent to (-x)+y

So,

5+(-11)=5-11=-6

(-6)-(-11)=(-6)+11=5

Your answer is 5.

7 0
3 years ago
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