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3 years ago

9

2x+2(3x-2)+4-2(3x+8)

2 answers:

Elodia [21]3 years ago

7 0

Answer:

2x - 16

Step-by-step explanation:

2x + 6x - 4 + 4 -6x - 16 = 2x - 16

vladimir2022 [97]3 years ago

3 0

Answer:

-14

Step-by-step explanation:

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Not quite sure what the question being asked here is.

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3 years ago

What is 7 +2 = x-4/2

madam [21]

Answer:

The answer is 11.

Step-by-step explanation:

We will use PEMDAS in this situation.

7 + 2 = x - 4 / 2

7 + 2 = x - 2 [divide first

9 = x - 2 [add the 7 and 2]

+2 +2 [the 2 cancels out]

11 = x

Your answer is 11.

I hope this helped!

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3 years ago

Tan9°. tan27°. tan45°. tan72°. tan81°= 1<br><br>could u plz solve it with clear process

Inga [223]

<u>Correct</u><u> </u><u>question</u><u>:</u><u>-</u>

<u>Prove </u><u>that </u><u>tan9.</u><u>t</u><u>a</u><u>n</u><u>1</u><u>7</u><u>.</u><u>t</u><u>a</u><u>n</u><u>4</u><u>5</u><u>.</u><u>t</u><u>a</u><u>n</u><u>7</u><u>3</u><u>.</u><u>t</u><u>a</u><u>n</u><u>8</u><u>1</u><u>=</u><u>1</u>

<u>LHS</u>

$\\ \sf\longmapsto tan9.tan17.tan45.tan73.tan81$

$\\ \sf\longmapsto tan9.tan81.tan17.tan73.tan45$

$\\ \sf\longmapsto tan(90-81).tan81.tan(90-73).tan73.1$

$\\ \sf\longmapsto cot81.tan81.cot73.tan73$

$\\ \sf\longmapsto 1.1$

$\\ \sf\longmapsto 1$

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Answer:

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Step-by-step explanation:

do the math and u get ur answer

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3 years ago

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50% chance that both will land tails up

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