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faltersainse [42]

2 years ago

6

Select the correct answer.

1 answer:

DiKsa [7]2 years ago

5 0

C

when doing substitution,you must make one a subject,which is y in this case.To make y the subject,you must move -2y to 4x to make the y positive,that leaves us with 2y+4x=5.Now move the 4x to 5 to make 2y=5-4x.Lastly,to make y the subject,divide both side by 2 to remove the 2 from the y, which leaves us with y=5-4x/2

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Find the difference of functions s and r shown below. r(x) = -x² + 3x s(x) = 2x + 1 ( s-r)(x)=

drek231 [11]

Answer:

Part 1)

$(s-r)(x)=(2x+1)-(-x^2+3x)$

Part 2)

$(s-r)(x)=x^2-x+1$

Step-by-step explanation:

Part 1)

So we have the two functions:

$r(x)=-x^2+3x\text{ and } s(x)=2x+1$

And we want to find:

$(s-r)(x)$

This is the same as:

$=s(x)-r(x)$

Substitute:

$=(2x+1)-(-x^2+3x)$

So, our answer for Part A is:

$=(2x+1)-(-x^2+3x)$

Part 2)

Let's find our difference.

Distribute the -1:

$=(2x+1)+(x^2-3x)$

Combine like terms:

$=(x^2)+(2x-3x)+(1)$

Add:

$=x^2-x+1$

And we're done!

8 0

4 years ago

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What is the answer of this question?

Troyanec [42]

Answer:

d x / d y = -x2 - 2 y + 8 / 2 x y + 6

Step-by-step explanation:

3 0

3 years ago

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What is the answer for |r-5|-4=2

Kruka [31]

11 works because 11-5-4 is 2.
-1 also works because it is an absolute value question so it will also equal 2.

7 0

4 years ago

30 points who gets em?? I need help with math, the screenshot is below.

malfutka [58]

Answer:

...none of them are correct, but if i had to choose, it'd be A.

Step-by-step explanation:

6 0

3 years ago

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F) 1 5/2 +8x4 = <br> alluda :(

Charra [1.4K]

Answer:

35.5

Step-by-step explanation:

1 5/2 + (8*4)= 35.5

(8*4)= 32

32+1 5/2

1 5/2=3 1/2

32+3 1/3

35.5 or 35 1/2

7 0

3 years ago