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Nezavi [6.7K]
3 years ago
14

-4(y - 2) = 12 y = ?​

Mathematics
1 answer:
nikdorinn [45]3 years ago
8 0

Answer:

Hello! answer: -1

Hope that helps!

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Help please i dont get it
ale4655 [162]

Answer:

  (c)  x = 2 and x = -8

Step-by-step explanation:

The rules of logarithms let you rewrite this as a quadratic equation. That equation will have two (2) potential solutions. We know from the domain of the log function that any negative value of x will be an extraneous solution.

__

The rules of logarithms that apply are ...

  \log(a)+\log(b)=\log(ab)\qquad\text{all logarithms to the same base}\\\\\log_b(a)=c\ \Longleftrightarrow\ b^c=a\\\\

__

<h3>take antilogs</h3>

We can rewrite the equation so that only one logarithm is involved. Then we can take antilogs.

  \log_4(x)+\log_4(x+6)=2\\\\\log_4(x(x+6))=2\qquad\text{using the first rule}\\\\4^2=x(x+6)\qquad\text{using the second rule}

__

<h3>solve the quadratic</h3>

Adding (6/2)² = 9 to both sides will "complete the square."

  16 +9 = x² +6x +9 . . . . . . . add 9

  25 = (x +3)²

  ±√25 = x +3 = ±5 . . . . . take the square root(s)

  x = -3 ±5 = {-8, +2}

The two potential solutions are x = 2 and x = -8.

8 0
2 years ago
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Find the area and the circumference using 3.14
Gwar [14]
A= 50.27 because the formula is pi times radius squared
C= 24.13 because the formula is 2 times pi times radius
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Which inequality is true?
worty [1.4K]
C. negative -1/4 < -(-2/3)

Explanation:
the doube negative on 2/3 turns it into a positive. since negative numbers are less than positive numbers, this is true
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If 2^x+4 = 2^3x-1, what is the value of x?
Ronch [10]

Answer:

     x = 5/2

Step-by-step explanation:

2^x+4 = 2^3x-1

x + 4 = 3x - 1

3x - x  = 4 + 1

2x   = 5

     x = 5/2

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3 years ago
Lin runs 5 laps around a track in ten minutes how many laps per minute
eimsori [14]
2 minutes per lap. I think
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3 years ago
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