3 years ago

Find the value of the variable.

Mathematics

1 answer:

Luba_88 [7]3 years ago

7 0

Answer:

sin 30=14/x

x=14*2

x=28

and

x=√{28²-14²}

x=14√3

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Given the following system of equations, what value of x makes the equations true?

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3 years ago

On interchanging two digits of the number 2643, it decreased by 180. Which two digits of 2643 might have been interchanged?

iris [78.8K]

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Explanation:

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3 years ago

Solve for N. <br> 2[7-6(1-n)]+3n=-20+4[6(n+1)-3n]

jonny [76]

Solving the expression $2[7-6(1-n)]+3n=-20+4[6(n+1)-3n]$ we get $n=\frac{2}{3}$

Step-by-step explanation:

We need to solve the equation $2[7-6(1-n)]+3n=-20+4[6(n+1)-3n]$ and find value of n.

Solving:

$2[7-6(1-n)]+3n=-20+4[6(n+1)-3n]$

Multiplying the terms inside the bracket

$2[7-6+6n]+3n=-20+4[6n+6-3n]$

Simplifying:

$2[1+6n]+3n=-20+4[6n-3n+6]$

$2[1+6n]+3n=-20+4[3n+6]$

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Adding -12n and -2 on both sides

$15n-12n=4-2$

$3n=2$

$n=\frac{2}{3}$

So, Solving the expression $2[7-6(1-n)]+3n=-20+4[6(n+1)-3n]$ we get $n=\frac{2}{3}$

Keywords: Solving Equations

Learn more about Solving Equations at:

#learnwithBrainly

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drek231 [11]

Answer:

Step-by-step explanation:

OPTION 3

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Step-by-step explanation:

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So its the second one !

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2 years ago

Read 2 more answers