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Elanso [62]
3 years ago
14

I don't really understand this Please help.

Mathematics
1 answer:
nekit [7.7K]3 years ago
6 0

Answer:

The first one, third one, fourth one, and sixth one.

Step-by-step explanation:

I hope this helps!

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. Find the area of a square with a side of 2v3.
Vlad1618 [11]

Answer:

area = 2 \sqrt{3}  \times 2 \sqrt{3}  \\  = 4( { \sqrt{3} })^{2}  \\  = 4 \times 3 \\  = 12 \:  {units}^{2}

6 0
3 years ago
Do you think the equations (x−1)(x+3)=17+x and (x−1)(x+3)+500=517+x should have the same solution set? Why?
oksano4ka [1.4K]

Answer:

Those two pair of equations have the same solution set.

Step-by-step explanation:

There are two equations  

(x-1)(x+3)=17+x ..... (1) and  

(x-1)(x+3)+500=517+x ...... (2)

We have to check the same solution set will be there for equations (1) and (2) or not.

Now, we are going to rearrange the equation (2).

(x-1)(x+3)+500=517+x

⇒ (x-1)(x+3)=517-500+x

⇒(x-1)(x+3)=17+x

This is the same equation as equation (1).  

Therefore, there will be the same solution set for equations (1) and (2).  (Answer)

There are two equations  

(x-1)(x+3)=17+x ..... (3) and  

3(x-1)(x+3)+500=51+3x ...... (4)

We have to check the same solution set will be there for equations (3) and (4) or not.

Now, we are going to rearrange the equation (4).

3(x-1)(x+3)+500=51+3x

⇒ 3(x-1)(x+3)=3(17+x)

⇒(x-1)(x+3)=17+x

This is the same equation as equation (3).  

Therefore, there will be the same solution set for equations (3) and (4). (Answer)

7 0
3 years ago
Kelsey uses the similarity statement ARST - ARUV to describe the triangles below.
SpyIntel [72]
8.0 is the best answer
6 0
3 years ago
Read 2 more answers
*****50 POINTSSSS*****
defon

Answer:

<h3>Given</h3>
  • m∠REG = 78°
  • mAR = 46°
  • ER ≅ GA
<h3>Solution</h3>
  • m∠GAR = 180° - m∠REG = 180° - 78° = 102° (supplementary angles sum to 180°)
  • m∠TAR = 1/2mAR = 1/2(46°) = 23°   (tangent chord angle is half the size of intercepted arc)
  • m∠GAN = 180° - (m∠TAR + m∠GAR) = 180° - (23° + 102°) = 55° (straight angle is 180°)
  • mAG = 2m∠GAN = 2(55°) = 110°
  • mRE = mAG = 110° (as ER ≅ GA)
  • mGE = 360° - (mAG + mAR + mRE) = 360° - (110° + 46° + 110°) = 94° (full circle is 360°)
6 0
3 years ago
A prepaid phone card has a balance of $22.40 remaining. If calls are $0.035 per minute, which equation represents the number of
Jobisdone [24]

Answer:

0.035m = 22.40

5 0
3 years ago
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