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V125BC [204]
3 years ago
6

I need help with this ASAP!!!!!

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
5 0

Answer:

x=3

Step-by-step explanation:

∠DBC+∠VBC is 180° since it is a straight line, ∠VBC=20x+5

The sum of all angles in a triangle is 180°, 9x-2 + 40° +∠DBC=180°

To find x, you can find ∠DBC first.  *Don't forget BRACKETS

∠DBC=180-(20x+5)

∠DBC=180-(9x-2 + 40°)

Now equal the equations to each other to find x.

180-(20x+5)=180-(40+9x-2)

180-20x-5=180-40-9x+2

175-20x=142-9x

175-142=20x-9x

33=11x

x=33/11

∴x=3

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answer 652

2 x 34 x 9 - 6 + 46

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A. {0,1,2,3,4}<br> B. {1,2,3,4}<br> C. {-1,0,1,2,3}<br> D. {-2,-1,0,1,2,3,4}
Harlamova29_29 [7]

Option D:

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Solution:

Given set:

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Z means integer values.

Integer means set of positive and negative values including zero.

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This means x lies between -2 and 4.

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The integers are -2, -1, 0, 1, 2, 3 and 4.

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Hence the given set is defined by the set  {-2, -1, 0, 1, 2, 3, 4}.

Option D is the correct answer.

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Hope this helps :)

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