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3 years ago

Find the value of x in each case:

Mathematics

1 answer:

goblinko [34]3 years ago

6 0

Answer:

x = 11

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ FEB and ∠ DEB are adjacent angles and supplementary, thus

∠ FEB = 180 - 4x , so

180 - 4x + x = 147, that is

180 - 3x = 147 ( subtract 180 from both sides )

- 3x = - 33 ( divide both sides by - 3 )

x = 11

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3 years ago

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Check:

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3 years ago

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Answer:

] y=x-4

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y - x = -4

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equation [2] for the variable y

[2] y = 2x + 18

// Plug this in for variable y in equation [1]

[1] (2x+18) - x = -4

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// Solve equation [1] for the variable x

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// Use the x value to solve for y

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Step-by-step explanation:

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2 years ago

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3 years ago

If f(x) =1/x and g(x) = x - 2 what is f(g(x)) when X = 1

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Answer:

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Step-by-step explanation:

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2 years ago