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Tanzania [10]
3 years ago
12

2x - 1 = 17...............

Mathematics
2 answers:
Alika [10]3 years ago
8 0

Answer:

x = 9

Step-by-step explanation:

2x - 1 + 1 = 17 + 1

2x = 18

(2x=18)/2

x = 9

yawa3891 [41]3 years ago
8 0

Answer:

2x - 1 = 17

add 1 on each side --> 2x = 18

x = 9 because one divides 2 from each side  and results to 9

Step-by-step explanation:

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3 years ago
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
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Step 3
The equation of parabola is then given as 
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(x-a)^{2}+ (y-b)^{2}= (y-c)^{2} ⇒ substituting a, b and c
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7 0
4 years ago
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8 0
3 years ago
Read 2 more answers
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algol [13]
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