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2 years ago

I NEED HELP ASAP PLEASE!!!

Mathematics

1 answer:

Artemon [7]2 years ago

8 0

Answer:

-3x+1y=-1

3x-1y=1

by multiplying with 1/3 the first equation we get

-1x+1/3y=-1/3

or from second equation

1x-1/3y=1/3

Step-by-step explanation:

y-y1=m(x-x1)

y1=-7

x1=-2

m=3

y-(-7)=3(x-(-2))

y+7=3(x+2)

y+7=3x+6

-3x+y=6-7

-3x+ 1y= -1

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21r-7-r+5=-52 solve for r

malfutka [58]

Answer:

r = - 2.5

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Step-by-step explanation:

21r - 7 - r + 5 = - 52

20r - 2 = - 52

20r - 2 + 2 = - 52 + 2

20r = - 50

20r ÷ 20 = - 50 ÷ 20

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3 0

2 years ago

Read 2 more answers

Which is the simplified form of the expression (6-4)-9

Veseljchak [2.6K]

I'll give you a hint. <u><em>You had to used pemdas stands for: p-parenthesis, e-exponents, m-multiply, d-divide, a-add, and s-subtracting.</em></u>

First you had to calculate with parenthesis first.

$(6-4)=2-9$

Then you add and subtract from left to right.

$2-9=-7$

Final answer $\boxed{=-7}$

Hope this helps!

And thank you for posting your question at here on brainly, and have a great day.

-Charlie

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3 years ago

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3 years ago

This transformation will produce similar, but not congruent, figures.

Angelina_Jolie [31]

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3 years ago

6. David leaves the house to go to school He walks 200 m west and 125 m

olga nikolaevna [1]

Answer:

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Step-by-step explanation:

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3 years ago