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2 years ago

7n+6=42-9. Please help me with this math equation

Mathematics

2 answers:

ycow [4]2 years ago

3 0

The answer is n=5. I worked it out

Brilliant_brown [7]2 years ago

3 0

7n-6 = 42-9
7n-6 = 33
7n = 33-6
7n = 27
n = 27/7

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Given that rectangle LMNO with coordinates L(0,0), M(3,0), N(3,7), O(0,7), P is the midpoint of LM⎯⎯⎯, and Q is the midpoint of

Elina [12.6K]

The midpoint of a line divides the line into equal segments.

The option that proves PQ = LO is (a)

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$\mathbf{L = (0,0)}$

$\mathbf{M = (3,0)}$

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$\mathbf{O = (0,7)}$

P is the midpoint of LM.

So, we have:

$\mathbf{P = \frac{LM}{2}}$

$\mathbf{P = (\frac{(0 +3}{2},\frac{0+0}{2})}$

$\mathbf{P = (\frac{3}{2},0)}$

Q is the midpoint of NO.

So, we have:

$\mathbf{Q = \frac{NO}{2}}$

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$\mathbf{Q = (\frac{3}{2},7)}$

Distance PQ is calculated as follows:

$\mathbf{d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}}$

This gives:

$\mathbf{PQ = \sqrt{(3/2 - 3/2)^2 + (0 - 7)^2}}$

$\mathbf{PQ = \sqrt{ 7^2}}$

$\mathbf{PQ = 7}$

Distance LO is calculated as follows:

$\mathbf{LO = \sqrt{(0 - 0)^2 + (0 - 7)^2}}$

$\mathbf{LO = \sqrt{ 7^2}}$

$\mathbf{LO=7}$

So, we have:

$\mathbf{PQ = 7}$

$\mathbf{LO=7}$

Thus:

$\mathbf{PQ = LO}$

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2 years ago

Help, please the question and thank you

Deffense [45]

Answer:

Whole number

Step-by-step explanation:

That's only because it is just 1 number that is gonna be there and i did some research too

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iogann1982 [59]

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<h3>Solving quadrilateral.</h3>

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Based on the information given, SU = TV and this will be:

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