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avanturin [10]
3 years ago
10

Helppppppppppppppppppppppppppppp

Mathematics
2 answers:
iren [92.7K]3 years ago
3 0
To start, the first thing you need to know is that when you add decimals, you must line the decimal up, meaning, if you were adding 2.7+4.1, you have to make sure 2 is lined up with 4, and 7 is lined up with 1 so that the decimals align. Then, you add straight down from right to left and you get 6.8 as your answer.
boyakko [2]3 years ago
3 0
          2.7
    +    4.1
-------------
          6.8
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Estimate the area of the parallelogram.
Elan Coil [88]

Answer:

c

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Worked 16 3/4 hours in past two days and plan to work 12 3/4 hours in the next two days
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16 3/4 + 12 3/4

16 +12 = 28

3/4 +3/4 = 1 1/2

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If DEF=GJH, find each missing measure
Bas_tet [7]

Congruent triangles have equal corresponding sides and angles.

  • The measure of the side lengths are: \mathbf{DF = 16m}, \mathbf{JH = 14m} and \mathbf{GJ = 19m}
  • The measure of the angles are: \mathbf{\angle G = 34^o}, \mathbf{\angle J = 41^o} and \mathbf{\angle F = 105^o}

The given parameters are:

\mathbf{\triangle D EF \cong \triangle GJH}

\mathbf{EF = 14m}

\mathbf{D E = 19m}

\mathbf{GH = 16m}

\mathbf{\angle D = 34^o}

\mathbf{\angle H = 105^o}

\mathbf{\triangle D EF \cong \triangle GJH} means that triangles DEF and GHJ are congruent triangles.

So, we have:

\mathbf{DF = GH}

This gives

\mathbf{DF = 16m}

Also, we have:

\mathbf{JH = EF}

This gives

\mathbf{JH = 14m}

Also, we have:

\mathbf{GJ = DE}

This gives

\mathbf{GJ = 19m}

The following angles are also congruent

\mathbf{\angle F = \angle H}

This gives

\mathbf{\angle F = 105^o}

Also, we have:

\mathbf{\angle G = \angle D}

This gives

\mathbf{\angle G = 34^o}

The measure of angle J is then calculated using

\mathbf{\angle J + \angle H + \angle G = 180^o}

This gives

\mathbf{\angle J + 105 + 34= 180^o}

\mathbf{\angle J + 139= 180^o}

Subtract 139 from both sides

\mathbf{\angle J = 41^o}

Read more about congruent triangles at:

brainly.com/question/4364353

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2 years ago
An $80 dress is marked down 25%. Find the price of the dress after the discount
Flura [38]
$80 times 0.25 equals 20
80 minus 20 equals 60 bucks
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