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Elanso [62]
2 years ago
15

Please help me with this question :)​

Mathematics
1 answer:
klio [65]2 years ago
3 0

Answer:

y>5/6

Step-by-step explanation:

5y+3>-7y+13

5y+7y>13-3

12y/12>10/12

y>5/6

This is an inequality, which shows where the variable y does or does not exist

from this we can say

y: (-infinity,5/6) (5/6, infinity]

or, y does not exist from (-infinity,5/6)

and does exist from (5/6, infinity]

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3 years ago
I genuinely have no clue how to do them<br>15 here and 15 on another post​
Dovator [93]

Step-by-step explanation:

6. angle 1 = angle 4 = 60deg (vertically opposite angles)

7. angle 3 = 180 - 40 - 60 = 80deg (angles on a straight line are supplementary)

8. angle 5 = angle 2 = 40deg (vertically opposite angles)

9. angle 6 = angle 3 = 80deg (vertically opposite angles)

10. angle 7 = angle 5 + angle 4 = 40 + 60 = 100deg (alternate angles, //lines)

11. angle 8 = 180 - 100 = 80deg (angles on a str line are supplementary)

12. angle 9 = 180 - 80 - 40 = 60deg (angles in a triangle)

13. angle 10 = 180 - 60 = 120deg (angles on a str line are supplementary)

14. angle 11 = angle 9 = 60deg (vertically opp angles)

15. angle 12 = angle 10 = 120deg (vertically opp angles)

Topic: angles

If you like to venture further, feel free to check out my insta (learntionary). It would be best if you could give it a follow. I'll be constantly posting math tips and notes! Thanks!

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2 years ago
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