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Natalija [7]
4 years ago
14

Idk how to explain my work :/ help ?

Mathematics
1 answer:
shtirl [24]4 years ago
3 0

The total arc length around a circle is 360 degrees. So, these 3 arc with expressions given will all add up to 360.

(-2 + 8x) + (10x + 10) + (10x - 12) = 360

28x - 4 = 360

28x = 364

x = 13

Now that we know the value of x, we can plug that value into the expression for arc LM and solve for the measure.

LM = 10x - 12

LM = 10(13) - 12

LM = 118 degrees

Hope this helps! :)

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How many terms can 5x+9-4b have
Nikolay [14]

Answer:

8x

Step-by-step explanation:

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4 0
3 years ago
1.what is the value of x? ( 1st pic)
balandron [24]
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5 0
3 years ago
I need help with this problem, if anyone could help ASAP, that would be much appreciated. In the figure below, mROP = 125° Find
VARVARA [1.3K]

Answer:

mRP = 125°

mQS = 125°

mPQR = 235°

mRPQ = 305°

Step-by-step explanation:

Given that

  • mROP = 125°
  • ∠ROP is a central angle

Then:

  • measure of arc RP, mRP = mROP = 125°

Given that

  • ∠QOS and ∠ROP are vertical angles

Then:

  • mQOS = mROP = 125°
  • measure of arc QS, mQS = mROP = 125°

Given that

  • ∠QOR and ∠SOP are vertical angles

Then:

  • mQOR = mSOP

Given that

  • The addition of all central angles of a circle is 360°

Then:

mQOS + mROP + mQOR + mSOP = 360°

250° + 2mQOR = 360°

mQOR = (360°- 250°)/2

mQOR = mSOP = 55°

And (QOR and SOP are central angles):

  • measure of arc QR, mQR = mQOR = 55°
  • measure of arc SP, mSP = mSOP = 55°

Finally:

measure of arc PQR, mPQR = mQOR + mSOP + mQOS = 55° + 55° + 125° = 235°

measure of arc RPQ, mRPQ = mROP + mSOP + mQOS = 125° + 55° + 125° = 305°

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3 years ago
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Yakvenalex [24]
What do you mean this question dosent make any sence
4 0
3 years ago
Sam decides to build a square garden. If the area of the garden is 25x2 + 30x + 9 square feet, what is the length of one side of
seropon [69]
The correct answer is C. (5x+3) feet, and here is how I got it.
This is the equation you need to use:
(a+b)^2 = (a+b) (a+b)
So, let us plug in 5x and 3 here:
(5x+3)^2 = (5x+3)(5x+3) = 25x^2 + 15x + 15x + 9 = 25x^2 + 30x + 9 which is the area of the garden. 
5 0
3 years ago
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