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Lubov Fominskaja [6]
4 years ago
5

​ 2x−9y=14 x=−6y+7 ​ x=____, y=___, equals

Mathematics
1 answer:
gogolik [260]4 years ago
6 0
Y=0,x=7. Please see the attachment for answers, details and explanation.

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The difference of x and 18 is greater than or equal to -12<br><br>its a inequality question
slavikrds [6]

Writing the word problem as an equation you get:

x - 18 ≥ -12

Now to solve for x:

Add 18 to both sides of the inequality:

x ≥ -12 + 18

Simplify:

x ≥ 6

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An accurate clock shows exactly 3 pm. In how many minutes will the minute hand catch up with the hour hand?
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Roughly about 3:17 . Hope I helped!
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How many constants are in the following expression?<br> 7x + 4y - 5 + 4x Help
ad-work [718]

Answer:

1

Step-by-step explanation:

-5 is a constant because its a number on its own without a variable

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3 years ago
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Hurry 50 points for correct answer
Ad libitum [116K]

Answer: <em>"7 is a solution to the original equation. The value –1 is an extraneous solution."</em>

Step-by-step explanation:

The equation x=\sqrt{6x+7} can be solved by squaring both sides:

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We can see that -1 and 7 are solutions, but make sure they are not extraneous by substituting them in the original equation:

1 = \sqrt{-1}\\ 7 = \sqrt{49}

The square root of 49 equals 7, but the square root of -1 is an imaginary number.

The correct choice is <em>"7 is a solution to the original equation. The value –1 is an extraneous solution."</em>

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3 years ago
Evaluate 2xy when x=-1/4and y=3
Yanka [14]

Answer:

see above

.............

7 0
3 years ago
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