3 years ago

Help! Best answer gets brainiest

Mathematics

1 answer:

lisov135 [29]3 years ago

3 0

Answer:

x=19

Step-by-step explanation:

In order to solve for x, we want to add the equations to equal 180.

6x+12+3x-3=180

9x+9=180

9x=171

x=19

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ATTENTION

finlep [7]

Here!

<h2>The answer is Option A!</h2>

$(x + 2 \sqrt{3} i)(x - 2 \sqrt{3}i )$

Let's see what complex numbers are!

$(x + 2 \sqrt{3 }i )(x - 2 \sqrt{3}i ) \\ = {x}^{2} - 2 \sqrt{3} x + 2 \sqrt{3} x - {(2 \sqrt{3} i)}^{2} \\ = {x}^{2} - {(2 \sqrt{3}i) }^{2}$

Now we know,

${i}^{2} = - 1$

So!

$= {x}^{2} - 12 \times( - 1)$

$= {x}^{2} + 12$

And thus we get the answer!

3 0

3 years ago

22) The base of a lampshade is circular. The circumference of the base is 3 times the radius increased by 4.25 inches.

BARSIC [14]

Answer:

~1.29 inches

Step-by-step explanation:

C = 2πr

C = 3r + 4.25

2πr = 3r + 4.25

2πr - 3r = 4.25

r(2π-3) = 4.25

r = 4.25/(2π-3) ≈ 1.29

5 0

3 years ago

More more more more

butalik [34]

Answer:

x is 11 degree

Step-by-step explanation:

35+5x=90

5x=90-35

5x=55

x=11

this answer is found by linear equation method

3 0

3 years ago

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Zoom in to view well <br> Thanks

Step2247 [10]

Answer:

the answer is c. ........

8 0

3 years ago

Read 2 more answers

PLEASE HELP!!! ............

SVEN [57.7K]

Answer:

No, it is not a function.

Step-by-step explanation:

Vertical line test. A function can only have one output, y, for each unique input, x.

3 0

3 years ago