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german
2 years ago
8

PLEASE HELPP ILL GIVE BRAINLIEST

Mathematics
2 answers:
lesya [120]2 years ago
8 0
The answer would be 75%
Debora [2.8K]2 years ago
4 0
IT IS 100% GOODL LUCK <3
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I dont understand this problem
Fiesta28 [93]

Answer:

D and F

Step-by-step explanation:

x^{2}+4x+4=12 can be rewritten as x^{2} +4x-8=0.

From there you can use the quadratic formula x=\frac{-b±\sqrt{b^{2}+4ac } }{2a} (ignore the A, I can‘t seem to remove it), where a=1, b=4, and c=-8.

x=\frac{-4±\sqrt{4^{2}-4(1)(-8)} }{2(1)}

Then you get x=\frac{-4±\sqrt{16+32}}{2}

Then you get x=\frac{-4±\sqrt{48} }{2}

So x=-2±\frac{4\sqrt{3} }{2}

Which means x=-2+2\sqrt{3} or -2-2\sqrt{3} which are choices D and F.

8 0
2 years ago
Which step in the construction of copying a line segment ensures that the new line segment has the same length as the original l
anzhelika [568]

Answer:

Now out of these points, i guess steps 5 and 6 are the main steps that ensure that the copied line segment is exactly the same as the original segment.

Step-by-step explanation:

Here are the steps I think you probably will go through.

1. Draw a line that is longer than the segment but shorter than the width of the page.

1a. Make sure this line is  at least 1/2 inch from the left hand side.  

2. Use a compass to measure the length of the original segment. Never use a ruler. Rulers do not exist in pure geometry.

3. Measure out the distance on the line you just drew with the compass. One end is on the left hand edge and the other end (the pencil end) is marking the segment so it is the same length as the compass. You are done.

The key step either two or three.The steps to copy a line segment are given below:

1. Lets start with a line segment AB that we have to copy.

2. Now mark a point C. below or above AB, that will be one endpoint of the new line segment.

3. Now, put the compass tip on point A of the line segment AB.

4. Spread the compass up to point B, so as the compass width is equal to length of AB.

5. Without changing the compass width, now place the compass tip on the point C that you made in step 2.

6. Now, draw an arc roughly without changing the compass settings. Mark that point D. This will form the new line segment.

7. Draw a line from C to D.

Now out of these points, i guess steps 5 and 6 are the main steps that ensure that the copied line segment is exactly the same as the original segment.

7 0
2 years ago
12+6 over N<br> What is the value of when N= 2?<br> A.6<br> B.9<br> C.12<br> D.18
Anna71 [15]

Answer:

thank you to your question i dont know if my

answer is correct this is my answer letter B

6 0
3 years ago
PLS HELP ME IS EZZZZZ
Arte-miy333 [17]

Answer:

825.663706143591cm

Step-by-step explanation:

80cm × 4 = 320cm

100cm × 3 = 300cm

The radius is 40

40 × 2 = 80cm

Circumference is πd

π80 = 251.327412287183

÷ 2 = 125.663706143591cm

In total

320 + 300 + 80 + 125.663... =

825.663706143591cm

6 0
2 years ago
Select the three expressions that are equivalent to 4/9
Deffense [45]

Answer:

8/18 or 12/27 or 16/36

Step-by-step explanation:

just add 4 on top and 9 on bottom and u should get all

6 0
3 years ago
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