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3 years ago

Combine like terms to simplify the expression, 5y + 8x - y + 12x

1 answer:

7 0

20x + 4y

i’m not sure if this is 100 percent but i combined 8 + 12 since they were both x and then combined 5 + (-1) since they were both y then put in simplest form

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Question 1 of 10

Masteriza [31]

Answer:

Step-by-step explanation:

8x-2(x-5)=x+25

8x-2x+10=x+25

6x+10=x+25

6x-x+10=25

5x+10=25

5x=25-10

5x=15

x=15/5

x=3

7 0

2 years ago

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What is the following sum? Assume x > 0 and y > 0 sqrt x^2y^2+2 sqrt x^3y^4+xy sqrt y

Gwar [14]

Answer:

$xy(1+2y\sqrt{x}+\sqrt{y})$

Step-by-step explanation:

Given expression,

$\sqrt{x^2y^2}+2\sqrt{x^3y^4}+xy\sqrt{y}$

$=(x^2y^2)^\frac{1}{2} + 2(x^3y^4)^\frac{1}{2} + xy\sqrt{y}$

$\because (\sqrt{x}=x^\frac{1}{2})$

$=(x^2)^\frac{1}{2} (y^2)^\frac{1}{2} + 2(x^3)^\frac{1}{2} (y^4)^\frac{1}{2} + xy\sqrt{y}$

$(\because (ab)^n=a^n b^n)$

$=x^{2\times \frac{1}{2}} y^{2\times \frac{1}{2}} + 2(x^{3\times \frac{1}{2}})(y^{4\times \frac{1}{2}})+xy\sqrt{y}$

$\because (a^n)^m=a^{mn}$

$=x^1 y^1 + 2x^{1\frac{1}{2}} y^2 + xy\sqrt{y}$

$=xy+2x.(x)^\frac{1}{2} y^2 + xy\sqrt{y}$

$=xy+2xy^2\sqrt{x}+xy\sqrt{y}$

$=xy(1+2y\sqrt{x}+\sqrt{y})$

8 0

3 years ago

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What is the number in scientific notation? 0.000000000093

Katen [24]

You have to move the decimal point all the way to behind the 9.
You move it eleven places to the right.
The answer is
9.3 x 10^-11

7 0

3 years ago

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What is the solution to this system of equations?

kherson [118]

Answer:

Step-by-step explanation:

When you substitute the coordinates to its corresponding variables, you can compare that answer choice A. is accurate compared to the other answer choices.

4 0

3 years ago

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Look at the figure. If ∆LMC ≅ ∆BJK, then _____ ≅ ∆KB A. BJ B. CM C. ML D. CL

Svetlanka [38]

The answer to your question is D.CL

8 0

3 years ago

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