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2 years ago

14

20 points five stars a thank you, dont need to awnser first. i will repeat this question every 3 and a half minutes. ive got nin

e hundred points to burn

2 answers:

AleksandrR [38]2 years ago

7 0

Answer:

Thank you

Step-by-step explanation:

PolarNik [594]2 years ago

6 0

Answer:

Thank you

Step-by-step explanation:

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-30w^5

Step-by-step explanation:

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3 years ago

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3 years ago

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Help please is for now

zmey [24]

Answer: 5

Steps:
5x - 2y = 30
5(8) - 2y = 30
40 - 2y = 30
-2y = 30 - 40
-2y = -10
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I would appreciate the brainliest if this answer was correct and the steps were clear and helpful! :)

3 0

2 years ago

3<br>Find the value of a <br>in the equation,(3+4√3)(2-a√3)=-18+2√3

ankoles [38]

Given:

The equation is:

$\left(3+4\sqrt{3}\right)\left(2-a\sqrt{3}\right)=-18+2\sqrt{3}$

To find:

The value of a.

Solution:

We have,

$\left(3+4\sqrt{3}\right)\left(2-a\sqrt{3}\right)=-18+2\sqrt{3}$

On simplification, we get

$(3)(2)+(4\sqrt{3})(2)+(3)(-a\sqrt{3})+(4\sqrt{3})(-a\sqrt{3})=-18+2\sqrt{3}$

$6+8\sqrt{3}-3a\sqrt{3}-4a(3)=-18+2\sqrt{3}$

$6+8\sqrt{3}-3a\sqrt{3}-12a=-18+2\sqrt{3}$

$(6-12a)+(8-3a)\sqrt{3}=-18+2\sqrt{3}$

On comparing both sides, we get

$6-12a=-18$

$-12a=-18-6$

$a=\dfrac{-24}{-12}$

$a=2$

And,

$8-3a=2$

$-3a=2-8$

$a=\dfrac{-6}{-3}$

$a=2$

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2 years ago

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Step-by-step explanation:

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3 years ago