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3 years ago

Plz answer I need a lot of help as soon as possible.

Mathematics

1 answer:

Maru [420]3 years ago

3 0

Answer:

your answer is a i think sorry if im wrong

Step-by-step explanation:

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I need help immediately, you’ll receive brainlest if answered correctly!!!

tia_tia [17]

Answer: 120

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5 0

3 years ago

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Can someone please help me with Evaluate |5| - |-5|.

Trava [24]

Answer:

|5| = 5

|-5| = 5

5-5

Step-by-step explanation:

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2 years ago

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After John worked at a job for 10 years, his salary doubled. If he started at $x, his salary after 10 years is _____.

VARVARA [1.3K]

After ten years his salary is x2

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3 years ago

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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,

$8-3a=2$

$-3a=2-8$

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

$a=2$

Therefore, the value of a is 2.

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3 years ago

The accompanying table shows the value of a car over time that was purchased for 14000 dollars, where x is years and y is the va

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