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Hoochie [10]
3 years ago
8

Find the values of the variables

Mathematics
1 answer:
ki77a [65]3 years ago
8 0

The values of the variables are k = -6 , w = ± 9 , f = -7

Step-by-step explanation:

To solve these problems we will compare the elements inside the [  ]

[-12 , -w²] = [2k , -81]

[2f , 3] =  [-14 , 3]

That mean:

1. -12 = 2k

2. -w² = -81

3. 2f = -14

∵ 2k = -12

Divide both sides by 2 to find k

∴ k = -6

∵ -w² = -81

Divide both sides by -1

∴ w² = 81

Take √ for both sides

∴ w = ± 9

∵ 2f = -14

Divide bith sides by 2

∴ f = -7

The values of the variables are k = -6 , w = ± 9 , f = -7

Learn more:

You can learn more about simple equation in brainly.com/question/13113987

#LearnwithBrainly

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Therefore the number is 28416

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