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4 years ago

Solve 2x + 5 = 12 please help !

Mathematics

2 answers:

Lady_Fox [76]4 years ago

8 0

The correct answer is x=3.5

Volgvan4 years ago

5 0

Answer: x = 3.5

Step-by-step explanation:

We can start by subtracting 5 from both sides:

2x - 5 = 12 - 5 Which will come out to: 2x = 7

Then we divide both sides by 2 so that we can isolate the variable:

2x/2 = 7/2 Which will come out to: x = 3.5

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According to The Wedding Report, Inc., the mean cost for a wedding in the United States is $28732 (as of November 2008). Suppose

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Following are the solution to the given points:

Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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3 years ago

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Which equation can be simplified to find the inverse of y = 5x2 + 10?

zmey [24]

f^-1(x) = sq.rt 5(x - 10)/5, sq.rt 5(x - 10)/5 is the inverse of y = 5x^2 +10

Step-by-step explanation:

interchanging the variables

x = 5y^2 + 10

5y^2 +10 = x

5y^2 = x - 10

dividing by 5

5y^2/5 = x/5 + -10/5

y^2 = x/5 + - 10/5

y^2 = x/5 - 2

y = 5 (x-10) 0/5 (sq.rt)

g(5x^2 + 10) = 5x/5

g(5x^2 + 10) = x

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