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shepuryov [24]
3 years ago
9

2/3 (6y - 4) = - 4y ​

Mathematics
2 answers:
kondaur [170]3 years ago
8 0

Answer:

all the variable arrange one side and number another side then do

Nookie1986 [14]3 years ago
7 0

Answer:

y = 1/3

Step-by-step explanation:

2/3 (6y - 4) = - 4y

2(6y-4)/3 = -4y

2(6y-4) = (-3)(4y)

y = 1/3

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Avery measured a line to be 14.7 inches long. If the actual length of the line is 14.5 inches, then what was the percent error o
seraphim [82]

Answer:

  1.4%

Step-by-step explanation:

Avery's error was ...

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7 0
3 years ago
The graph of y = 4x2 - 4x – 1 is shown.
11Alexandr11 [23.1K]

Answer:

i) The approximate solutions are: x_{1} \approx -0.207, x_{2} \approx 1.207.

ii) The approximate solutions are: x_{1}\approx -0.5, x_{2} \approx 1.5.

Step-by-step explanation:

i) The best approach to estimate graphically the solution of 4\cdot x^{2} - 4\cdot x - 1 = 0 is graphing the following system of equations:

y = 4\cdot x^{2}-4\cdot x - 1 (1)

y = 0 (2)

And labeling the points in which both intersects each other. We include the result in the image 'solution-i'. The approximate solutions are: x_{1} \approx -0.207, x_{2} \approx 1.207.

ii) The best approach to estimate graphically the solution of 4\cdot x^{2} - 4\cdot x - 1 = 2 is graphing the following system of equations:

y = 4\cdot x^{2}-4\cdot x - 1 (1)

y = 2 (2)

And labeling the points in which both intersects each other. We include the result in the image 'solution-ii'. The approximate solutions are: x_{1}\approx -0.5, x_{2} \approx 1.5.

5 0
3 years ago
the melting point of mercury is about 1/4 of the melting point of krypton. the melting point of mercury is -39°C. Write and solv
vova2212 [387]

This is not the best question I've ever seen. The wording is the problem, and it's not your fault. The melting point of Krypton is about - 160 oC. It means that numerically the melting point of Krypton is 4 times lower than that of mercury.

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M = - 39

Krypton = 4*-39

Krypton = - 156o C

Now you want to make it something like K(1/4) = - 39 which would be fine. You can't use - 1/4. If you do, your answer will come out to be + 156 which is not what you mean. If this was a multiple choice question, your answer would be the second best one.

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4 years ago
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