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Vadim26 [7]
3 years ago
7

Suppose M is the midpoint of segment CD, CM = 5x-12 and MD = 2x + 9. What is x?​

Mathematics
1 answer:
olasank [31]3 years ago
8 0

Answer:

use this https://www.calculatorsoup.com/

Step-by-step explanation:

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Max height

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put in function

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Answer the following.
Sindrei [870]

Answer:

  1. 78.33°
  2. 71°

Step-by-step explanation:

1) The sum of angles in a triangle is 180°, so ...

  (x +3)° +(x +24)° +(x -10)° = 180°

  3x +17 = 180 . . . . . . . . divide by °, collect terms

  3x = 163 . . . . . . . . . . . .subtract 17

  x = 54 1/3 . . . . . . . . . . .divide by 3

m∠B = (x +24)° = (54 1/3 + 24)°

m∠B ≈ 78.33°

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2) An exterior angle is equal to the sum of the opposite interior angles.

  m∠ACD = m∠A + m∠B

  (3x -10)° = (x +9)° + 105°

  2x = 124 . . . . . . . . . . . . . . divide by °, add 10-x to both sides

  x = 62 . . . . . . . . . . . . . . . . divide by 2

m∠A  = (x +9)° = (62 +9)°

m∠A = 71°

4 0
3 years ago
The sum of 10 and twice Mai’s age
Nonamiya [84]

Answer:

Can I get the full question please

Step-by-step explanation:

x + y = 10 - - - 1

x=2y - - - - - 2

Putting the value of x in eqn 1,

2y+y=10

y=10/3

=3.33 yrs

Which i feel is incorrect

4 0
3 years ago
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