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scoray [572]
3 years ago
7

What is 5 7/10 plus 3 1/3?

Mathematics
1 answer:
Xelga [282]3 years ago
5 0

Answer:

5 31/30 or 181/30

Step-by-step explanation:

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Will mark brainliest, help me answer this question!
DanielleElmas [232]

Answer:

135 degrees

Step-by-step explanation:

  • Angle CBD is the sum of angle ABC and angle ABD, so we find these first
  • An Isosceles triangle has 2 equal sides and 2 equal angles
  • Isosceles triangle theorem tells us that the 2 equal angles are respectively opposite the equal sides
  • Since triangle ABC has sides AB=AC, then angle ACB = angle ABC
  • So knowing that angles of triangle add up to 180, then
  • \angle CAB+\angle ACB+\angle ABC=180\\(50)+\angle ACB+\angle ABC=180\\50-(50)+\angle ACB+\angle ABC=180-(50)\\\angle ACB+\angle ABC=130\\But,\angle ACB=\angle ABC,so\\(\angle ABC)+\angle ABC=130\\2\angle ABC=130\\\angle ABC=65
  • Now we do the next triangle to get ABD
  • Since triangle ABD has sides AB=BD, then angle BDA = angle BAD
  • So knowing that angles of triangle add up to 180, then
  • \angle BDA+\angle BAD+\angle ABD=180\\(55)+\angle BAD+\angle ABD=180\\But,\angle BDA=\angle BAD,so\\(55)+(55)+\angle ABD=180\\110+\angle ABD=180\\110-(110)+\angle ABD=180-(110)\\\angle ABD=70
  • Now we said, angle CBD is the sum of angle ABC and angle ABD, so
  • \angle ABC+\angle ABD=\angle CBD\\(65)+(70)=\angle CBD\\\angle CBD=135
3 0
3 years ago
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Work out the area of this circle. Take to be 3.142 and give your answer to 2 decimal places. 11.2 cm
ivolga24 [154]

Answer:

thanks!! for your answer

Step-by-step explanation:

Im so thankful!!

4 0
2 years ago
If y varies directly as x, and y is 20 when x is 4, what is the constant of variation for this relation?
Nuetrik [128]
The variation would be x5. 4*5=20
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Help I’m to lazy to do it
AleksandrR [38]
Bro use school cheats
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Solve This Please!!! Easy!!!
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If you say its easy, then why don't you figure out yourself? Or ask the teacher?

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