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alexira [117]
4 years ago
14

Write the equation of a line that is perpendicular to the line; y – 2 = -1/6 (x + 1), and that passes through the given point (–

1, 2).
Mathematics
1 answer:
creativ13 [48]4 years ago
3 0

the equation would be y=6x+8

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Explain relationship between the factors of a quadratic expression, the roots of the related quadratic equation, and the x-inter
Zinaida [17]

Step-by-step explanation:

So, let's use x2 - 3x - 28 as an example.

 

It's factors are (x - 7)(x + 4).

 

The roots are the x-values that make our expression equal 0. In order for x2 - 3x - 28 to equal 0, either of our factors need to equal 0, since 0 times anything is 0.

 

x2 - 3x - 28 = 0

(x - 7)(x + 4) = 0

 

x - 7 = 0

x = 7

(7 - 7)(7 + 4) = 0(11) = 0

 

x + 4 = 0

x = -4

(-4 - 7)(-4 + 4) = -11(0) = 0

 

That gives us two points on our graph, (7,0) and (-4,0). Where are those? On the x-axis! Thus, there are our x-intercepts.

 

By the way, for the future, along the x-axis, y = 0, so if you are asked for the x-intercepts (or roots), set y = 0 and solve for x.

 

Along the y-axis, x = 0, so if you are asked for the y-intercepts, set x = 0 and solve for y.

 

y = 02 - 3(0) - 28

y = -28

 

So, the y-intercept(s) of our same equation is y = -28, or (0,-28).

 

Boom.

3 0
3 years ago
I picked random so please help me
Anna [14]

9514 1404 393

Answer:

  A.  6, 24, 96, 384

Step-by-step explanation:

The recursive formula tells you that the next number in sequence is 4 times the previous one.

For first term 6, the second term is 4·6 = 24.

For 2nd term 24, the third term is 4·24 = 96.

For 3rd term 96, the fourth term is 4·96 = 384.

The first four terms of the sequence are ...

  6, 24, 96, 384

__

You don't even need to figure all four terms. You know immediately which sequence is correct once you have found ...

  G_2=4*G_1=4*6=24

5 0
3 years ago
A song has 28 beats in 4 seconds . At this rate ,how many beats are there in 30 seconds?
devlian [24]
You need to make a proportion

beats         28     x
seconds     4       30


cross multiply and divide

(28) (30) = 4x

840 = 4x
210 = x
4 0
3 years ago
Read 2 more answers
Simplify 5x + 3x + 2 +4
Ksivusya [100]

Hi

add "x" with "x" and numbers with numbers

5x+3x+2+4 = 8x+6

4 0
3 years ago
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What is 150/5? I need help asap plz
Readme [11.4K]
If your just doing 150 divided by 5 then the answer would be 30
8 0
3 years ago
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