3 years ago

Write an algebraic expression for this word expression. the difference of n and 9

Mathematics

1 answer:

storchak [24]3 years ago

6 0

N-9=14
that's just an example. what it equals to can be anything really

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Answer:

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julsineya [31]

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Step-by-step explanation:

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3 years ago

Find the measure of angle A.<br> A<br> 9x+6<br> 4x + 6<br> m/A=

Likurg_2 [28]

Answer:

angle A=30°

Step-by-step explanation:

$9x + 6 + 4x + 6 + 90 = 180 \\ 13x + 102 = 180 \\ 13x = 180 - 102 \\ 13x = 78 \\ \frac{13x}{ 13} = \frac{ 78}{13} \\ x = 6 \\ 4x + 6 = a \\ 4(6) + 6 = a \\ 24 + 6 = a \\ 30 = a$

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

A regular hexagon has 6 congruent angles

the the angles created on the line of symmetry are equal to 60 so the angle of rotational symmetry is 60 degrees.

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Here is a visual from basic-matematics

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