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Margarita [4]
2 years ago
8

If a number is added to twice the number the result is -9 what is the number

Mathematics
2 answers:
Licemer1 [7]2 years ago
7 0

Answer:

the number is added to twice number is 99

PIT_PIT [208]2 years ago
4 0

Answer:

x + 2x=-9

3x= -9

x=-3

Step-by-step explanation:

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The lesson is 19.2 Angles in inscribed Quadrilaterals
alexdok [17]

Answer:

m<R=44.9,m<S=56.9,m<T=44.9,m<U= 32.9.

Step-by-step explanation:

When two chords are equal then the measure of the arcs are equal.

Chord RU= Chord UT

Or , m arc RU= m arc UT,

3z-4=x+2z+7   Or             z=x+11

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Substituting z=x+11

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m<R= (marc UT+ m  arc ST)÷2

m<R=(69+77.9)÷2=73.45

m<S= (m arc RU+m arc UT)÷2

m<S= (69+69)÷2=69

m<T=(m arc RU+m arc RS)÷2=73.45

m<U=(m arc RS+m arc m arc ST)÷2=77.9








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''''''''''''''"''""''''''

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