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leva [86]
2 years ago
11

Gggggggggggggggggggggggeeeeeeeeeeeeeeeeeelllllppppppppppppppppppppppppppppppppppppppppppp

Mathematics
2 answers:
lidiya [134]2 years ago
6 0

Answer:

help* not gelp

Step-by-step explanation:

but i.d.k im so sry

jek_recluse [69]2 years ago
6 0

Okay so what you want to do is since it is asking to combine like terms you would take the -m and add a positive m so: -m+m=0

  So since we did it to one side we have to do it to the other and 3m plus another m would come out to a total of 4m. So now our equation should look like this: 6=4m+14

  Now what you want to do is take away 14 from the right side to cancel it out, so, 14-14=0 Now that we've canceled that out we have to take 14 away from 6. Which 6-14 comes out to be -8. So now the problem should be -8=4m.

  Alright now all that's left to do is to isolate the variable and find out what m is. So to do this you want to divide both sides by 4 so, -8÷4 and 4m÷4. Know -8 divided by 4 is -2, and for 4m divided by 4 the fours are going to cancel out leaving us left with the m.

So know all that's left is: -2=m

Therefore m = -2

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Help idk how to do this ASAP please
Sergio039 [100]

Answer:

The area of ∆DEF = 4.5in²

Step-by-step explanation:

From the above diagram,

∆BAC ~∆DEF

It is important to note that if two triangles are similar, the ratio of their areas is equal or equivalent to the ratio of the areas of their sides

This means for the above question, that

We have the bigger triangle = ∆BAC has a side of 4 in and Area = 8 in²

The small triangle has a side of 3in

Finding the scale factor k = ratio of the sides of both Triangles

k = 4/3

k² = (4/3)²

k² = 16/9

Hence,

Area of ∆BAC/ Area of ∆DEF = 16/9

8in²/Area of ∆DEF = 16/9

We cross Multiply

8 in² × 9 = Area of ∆DEF × 16

Divide both sides by 16

Area of ∆DEF = 72/16

= 4.5in²

Therefore, the Area of ∆DEF rounded to the nearest tenth = 4.5in²

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