2 years ago

I’m not sure how to do angle relationships, so what is angle cbd?

Mathematics

1 answer:

N76 [4]2 years ago

7 0

Answer:

CBD =31

Step-by-step explanation:

CBD + DBE equal 90 since together they form a right angle

CBD + 59 = 90

Subtract 59 from each side

CBD +59-59 = 90-59

CBD =31

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kati45 [8]

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3 years ago

Suppose b is any integer. If b mod 12 = 5, then 7b mod 12

Rzqust [24]

The result follows directly from properties of modular arithmetic:

$b\equiv5\pmod{12}\implies 7b\equiv35\equiv-1\equiv\boxed{11}\pmod{12}$

That is,

$b\equiv5\pmod{12}$

means we can write $b=12n+5$ for some integer $n$ . Then

$7b=7(12n+5)=12(7n)+35$

and taken mod 12, the first term goes away, so

$7b\equiv35\pmod{12}$

etc

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3 years ago

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Korvikt [17]

Answer:

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Step-by-step explanation:

I counted -3 away from -5.

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3 years ago

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topjm [15]

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3 years ago

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sertanlavr [38]

Pour example

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3 years ago