3 years ago

I will add you to brainlist if you get the answer right promise

Mathematics

1 answer:

Slav-nsk [51]3 years ago

4 0

Answer:

Step-by-step explanation:

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NEED HELP ASAP<br><br>3(x+2)=18

elena-14-01-66 [18.8K]

Answer:

x=4

Step-by-step explanation:

3x + 6 = 18

3x = 18 - 6 = 12

x = 4

4 0

2 years ago

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What is the simplified form of the following expression? 2√27+√12-3√3-2√12

LiRa [457]

Answer:

√3

Step-by-step explanation:

The given expression to be simplified is

$2 \sqrt{27}+\sqrt{12}-3\sqrt{3}-2 \sqrt{12}$

but

$2 \sqrt{27}=2\sqrt{9 \times 3}=2 \times \sqrt{9}\times \sqrt{3}=2 \times 3 \times\sqrt{3}=6 \sqrt{3}$

$\sqrt{12}=\sqrt{4\times3}= \sqrt{4}\times \sqrt{3}=2\sqrt{3}$

Since √12=2√3,this implies that,

$2\sqrt{12}=2\times2\sqrt{3}=4 \sqrt{3}$

Therefore,

$2 \sqrt{27}+\sqrt{12}-3\sqrt{3}-2 \sqrt{12}=6\sqrt{3}+2\sqrt{3}-3 \sqrt{3} -4\sqrt{3}$

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

$=\sqrt{3}$

The simplified form of ,

$2 \sqrt{27}+\sqrt{12}-3\sqrt{3}-2 \sqrt{12}$ is √3

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3 years ago

F(-2) when f(x) = -2x - 3

Vika [28.1K]

Answer:

Step-by-step explanation:

f(-2)=-2x-3

plug in the -2

f(-2)= -2(-2) -3

multiply it out

f(-2)= 4-3

subtract

f(-2)= 1

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3 years ago

What's:<br><br> Find the slope of a line that passes through at (3,1) and (6,-5)

olga_2 [115]

Use the slope formula.
Y2 - Y1 / X2 - X1
(3,1) (6,-5)
-5 - 1 / 6 - 3
-6 / 3
slope = -2

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3 years ago

42?? I get confused with adding/ multiplying

Brut [27]

The answer is c pls mark me as brainless

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3 years ago

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I will add you to brainlist if you get the answer right promise ​

I will add you to brainlist if you get the answer right promise