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faltersainse [42]
2 years ago
6

Help please I don’t understand this

Mathematics
1 answer:
Aleksandr [31]2 years ago
5 0
If you could please make it clear I might be able to help, (that is if you've not already done it)
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Help me pleaseeeeeee
iogann1982 [59]
You start by finding two points on the line. In this case, (-4,1) and (-2,2) will do.

To get from (-4,1) to (-2,2), you need to go “up 1, right 2” which gives you a slope of m = 1/2

Next you need the b-value, which comes from the y-intercept of (0,3). The b-value is 3.

Putting the slope and b-value into y=mx+b, you have y = 1/2 x + 3.
4 0
3 years ago
Describe the set of points z in the complex plane that satisfy the given equation; |z-2|=Re(z).
OLEGan [10]

Answer:

Parabola with vertex at point (1,0) that goes to the right (see attached diagram).

Step-by-step explanation:

Let the complex number z be

z=x+iy,

then

z-2=x+iy-2=(x-2)+iy\\ \\Re\ (z-2)=x-2\\ \\Im\ (z-2)=y\\ \\|z-2|=\sqrt{Re^2\ (z-2)+Im^2\ (z-2)}=\sqrt{(x-2)^2+y^2}

and

Re\ z=x

Thus,

\sqrt{(x-2)^2+y^2}=x

Square it:

(x-2)^2+y^2=x^2\\ \\x^2-4x+4+y^2=x^2\\ \\-4x+4+y^2=0\\ \\y^2=4x-4\\ \\y^2=4(x-1)

This is the equation of parabola with vertex at point (1,0) that goes to the right.

3 0
2 years ago
Lynn says that the product of 4/5 and 5/2 is greater than 4/5.Which statement is true?
Alexus [3.1K]

Answer:5/2 is greater I believe


Step-by-step explanation:


7 0
2 years ago
Read 2 more answers
Solve 3(x-5)-4(x+3)=​
Wittaler [7]

3(x-5)-4(x+3)

Multiply the first bracket by 3

(3)(x)=3x

(3)(-5)=-15

(-4)(x)=-4x

(-4)(3)=-12

3x-15-4x-12

3x-4x-15-12 ( combine like terms)

Answer: -x-27

5 0
3 years ago
Seth is playing an arcade game. He
umka21 [38]

Answer:

0

Step-by-step explanation:

+25 for the first attempt but -25 for the second

3 0
3 years ago
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