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3 years ago

6

If the following system of equations was written as a matrix equation in the form AX = C, and matrix A was expressed in the form

[a c b d] , find the value of a - b + c + d.
5x + 7y = 7
3x - 2y = 9

My main problem is understanding which numbers are a, b, c, and d.

1 answer:

FrozenT [24]3 years ago

6 0

That's what I came up with. Still not sure of my answer.

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Simplify 7-5x-(3+5x)

galben [10]

Answer:

-10x +4

Step-by-step explanation:

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2 years ago

he closing price of a share of stock in Company XYZ is $25.69 on Thursday. If the change from the closing price on Wednesday is

mamaluj [8]

Answer:

Option C - $26.44

Step-by-step explanation:

To find the closing proce on Wednesday

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Company XYZ is - $0.75 on Wednesday

This means the calculation should be as following,

25.69 + 0.75 = 26.44$ the closing price for Wednesday

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3 years ago

Guadalupe has 13 bulbs to make a string of holiday lights. How many distinct arrangements can she make if she has 4 red bulbs, 4

Margarita [4]

Answer:

It depends

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Well, it depends how many lights she needs per arrangement.

Comment below if it is mentioned but you didn't include it.

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

Please, please give brainliest, it would be greatly appreciated, I only a few more before I advance, thanks!

8 0

2 years ago

Please zoom in to see better , I will reward brainliest

agasfer [191]

The answerto this is 28/45

4 0

3 years ago

Solve for x using distributive property <br><br> 2(x+7)=13<br><br> and<br><br> 5(x-7)=17

Law Incorporation [45]

Answer:

x= −1/2, x=52/5

Step-by-step explanation:

2(x+7)=13

(2)(x)+(2)(7)=13(Distribute)

2x+14−14=13−14

2x=−1

2x/<u><em>2</em></u>=−1/<u>2</u>

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

5(x−7)=17

(5)(x)+(5)(−7)=17(Distribute)

5x+−35=17

5x−35=17

5x−35+35=17+35

5x=52

5x/<u><em>5</em></u>=52/<u>5</u>

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2 years ago