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3 years ago

Answer all questions, your combing like terms. Show ALL of you work! Thank you!!

Mathematics

1 answer:

Elanso [62]3 years ago

6 0

Answer:

1. -12x - 9y - 6

2. -12x + 36

3. -240

4. -2

5. x = -57

6. x = -6

7. x = 48

8. x = 20

9. x = -288

10. n = 8

Step-by-step explanation:

-5x - 13 + 3y - 7x - 12y + 7

-12x - 13 + 3y - 12y + 7

-12x - 6 + 3y - 12y

-12x - 6 - 9y

-12x - 9y - 6

-3(4x - 12)

-3(4x) + (-3)(-12)

-12x + 36

6x - 282

6(7) - 282

42 - 282

-240

6x + 2(y + x)

6(-2) + 2(7 + (-2))

-12 + 2(7 - 2)

-12 + 2(5)

-12 + 10

-2

x - 23 = -80

+ 23 +23

x = -57

12x = -72

/12 /12

x = -6

x/4 = 12

* 4 * 4

x = 48

3x + 12 = 72

- 12 - 12

3x = 60

/3 /3

x = 20

x/4 - 8 = -80

+ 8 + 8

x/4 = -72

* 4 * 4

x = -288

10.

-4(1 - 5n) - 8n = 92

-4 + (-4)(-5n) - 8n = 92

-4 + 20n - 8n = 92

-4 + 12n = 92

12n - 4 = 92

+ 4 + 4

12n = 96

/12 /12

n = 8

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algol13

Answer:

Plants are restrictive to flow of eroding agents, bind soil in their roots.

Step-by-step explanation:

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Plants help to prevent soil from erosion in following ways :

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8 0

3 years ago

Anthony has two cube-shaped pots with an interior edge length of 8 inches and two cube-shaped pots with an interior edge length

weqwewe [10]

He will have left 154.75 inches³ after he fills each pot full of soil

Step-by-step explanation:

The formula of the volume of a cube is V = s³, where s is the length of its side.

Remember:

1 foot 12 inches
1 foot² = (12)² inches² = 144 inches²
1 foot³ = (12)³ inches³ = 1728 inches³

∵ Anthony has two cube-shaped pots with an interior edge

length of 8 inches

∴ s = 8

- use the formula of the volume

∴ The volume of each pot = (8)³ = 512 inches³

∴ The volume of the two pots = 512 × 2 = 1024 inches³

∵ He has another two cube-shaped pots with an interior edge

length of 6.5 inches

∴ s = 6.5

∴ The volume of each pot = (6.5)³ = 274.625 inches³

∴ The volume of the two pots = 274.625 × 2 = 549.25 inches³

∵ He wants to fill each pot full of potting soil

- The volume of soil he uses to fill the 4 pots is equal the volume

of the four pots

∵ The total volume of pots = 1024 + 549.25 = 1573.25 inches³

∴ The total soil he uses = 1573.25 inches³

∵ His bag of potting soil is one cubic foot

∵ 1 cubic feet = 1728 cubic inches

- To find the quantity of soil he not used subtract the total volume

of the 4 pots from the volume of the soil in his bag

∴ The soil he will left = 1728 - 1573.25 = 154.75 inches³

He will have left 154.75 inches³ after he fills each pot full of soil

Learn more:

You can learn more about the word problems in brainly.com/question/10557938

#LearnwithBrainly

6 0

3 years ago

Digital Lesson

kifflom [539]

Answer:

about 28

Step-by-step explanation:

7 0

3 years ago

Help!!!!!!!!!!!!!!!!!!!!!!!

Nataly [62]

Hello.

Firstly, let's isolate x on the equation:

$\mathsf{f(x) = 3x + 3} \\ \\ \mathsf{y = 3x + 3} \\ \\ \mathsf{-3x = -y + 3} \\ \\ \mathsf{x = \dfrac{-y + 3}{3}}$

Now, we can replace 'x' for 'y' and vice-versa:

$\mathsf{f^{-1}(x) = \frac{-x + 3}{3}`}$

Hope I helped.

4 0

3 years ago

Solve for x.<br><br> X+1/2=3/4

photoshop1234 [79]

Answer:

1/2 of 4 is 2

2/4 + 1/4 = 3/4

x = 1/4

Hope this helps!!!

Im here if you need anymore help.

4 0

3 years ago

Read 2 more answers