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2 years ago

Slove the equation r+ 3 = (r - 5) explain step by step please

Mathematics

2 answers:

viktelen [127]2 years ago

6 0

Answer:

No solution l

Solving steps:

=> R + 3= (r - 5)

=> $r - r + 3 = r - r - 5$

=> $3 = - 5$

Step 1: substract 3 from both side

=> $3 - 3 = - 5 - 3$

Step 2: Subtract 3 - 3 and -5 - 3

=> 0 = - 8

<h3>Therefore this solution that have no solution </h3><h3>Good luck and enjoy ^_^</h3>

grigory [225]2 years ago

4 0

Answer:

no solutions

Step-by-step explanation:

Solving

Step 1: Subtract 3 from both sides.

$r+3-r=r-5-r$
$3=-5$

Step 2: Subtract 3 from both sides.

$3-3=-5-3$
$0\neq -8$

Therefore, there are no solutions to this equation.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

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2 years ago

If the diagonal of a square is approximately 12.73, what is the length of its sides?

Alja [10]

Answer:

The length of the sides of the square is 9.0015

Step-by-step explanation:

Given

The diagonal of a square = 12.73

Required

The length of its side

Let the length and the diagonal of the square be represented by L and D, respectively.

So that

D = 12.73

The relationship between the diagonal and the length of a square is given by the Pythagoras theorem as follows:

$D^{2} = L^{2} + L^{2}$

Solving further, we have

$D^{2} = 2L^{2}$

Divide both sides by 2

$\frac{D^{2}}{2} = \frac{2L^{2}}{2}$

$\frac{D^{2}}{2} = L^2$

Take Square root of both sides

$\sqrt{\frac{D^{2}}{2}} = \sqrt{L^2}$

$\sqrt{\frac{D^{2}}{2}} = L$

Reorder

$L = \sqrt{\frac{D^{2}}{2}}$

Now, the value of L can be calculated by substituting 12.73 for D

$L = \sqrt{\frac{12.73^{2}}{2}}$

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Answer:

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