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snow_tiger [21]
3 years ago
14

Could someone help me out please!

Mathematics
1 answer:
cluponka [151]3 years ago
7 0

Answer:

  1. BC = 6
  2. x = 5
  3. CE = 16
  4. Yes, BC║DE

Step-by-step explanation:

1. The parallel lines make the various triangles similar, so the corresponding sides are in proportion.

... BC/AB = FE/A.F

... BC/9 = 4/6

... BC = 9·4/6 = 6

2. As in problem 1, the triangles are similar, so ...

... x/(x+10) = 10/30

... 30x = 10x + 100 . . . . multiply by 30(x+10)

... 20x = 100 . . . . . . . . . subtract 10x

... x = 100/20 = 5

3. As in problems 1 and 2, the triangles are similar, so ...

... AD/DB = CE/EB

... 24/27 = CE/18

... 18·24/27 = CE = 16

4. If the lines of interest are parallel, the triangles will be similar and corresponding measures will be in proportion.

Compare AD/DB = 15/12 = 5/4 to AE/EC = 10/8 = 5/4. These are equal, so corresponding measures are proportional. Therefore we conclude the triangles are similar and BC║DE.

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3 years ago
If 5x= 1/125 what is the value of x
Mnenie [13.5K]

Answer:

x=1/625

Step-by-step explanation:

given 5x=1/125

x=1/125x5

x=1/625

3 0
3 years ago
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Is this right?? we are learning ‘applying systems of equations’
Sunny_sXe [5.5K]

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8 0
3 years ago
I will give crown to the best answe PLEASE HELP ME!!!!!
Goshia [24]
Comment
You can't get to quadrant 4 to quad 2 without 2 steps. The answers tell you that. The question is, did you use a reflection and a y or x translations or 2 reflections or 2 y or 2x translations.

Argument
You can take one point and see if it translate from beginning (purple triangle) to (yellow triangle) end. If two conditions will get you the right answer, then you have to try another point to break the tie.

We'll use Point C.
Choice A: If you reflect C over the y axis, you will go from (-5,1) to (5,1)
                 If you move C six units down, you will go from (5,1) to  (5,-5) which is where C' is.
                 That is pretty much the answer.

I could confirm it with another point which is the way your should do it.

Try Point A

Choice A:  Point A reflects across the y axis going from (-3,4) to (3,4)
                 Point A  translates down by moving from (3,4) to (3,-2) to become A'

Answer reflection and translation  in condition A

More Comment
I should do one more for you to show you that it is wrong.
You can try Choice B of the multiple Choice answers.

We will use Point C 
If we translate C across the x axis it will go from (-5,1) to (-5,-1)
The we are to translate 1 unit up. We will go from (-5,0) from (-5,-1) That's nowheres near where C' is. Choice B is wrong.

6 0
3 years ago
Read 2 more answers
The total travel time for the ranger to get to the car is the sum of the travel time in the forest and the travel time on the ro
Yuki888 [10]

Answer:

[ext]T(x) = 2C / Speed[/ext]

Step-by-step explanation:

[ext]Time taken for the Ranger to get to the car = Sum total time taken to travel in the forest and on the road[/ext]

Since [ext]distance of the Ranger to the car = C[/ext]

[ext]Time taken = distance/speed[/ext]

[ext]Total Time taken T(x) = 2 * C / speed[/ext]

T(x) = 2C / speed

4 0
3 years ago
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