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Tasya [4]
3 years ago
15

Quick anyone know the answer?

Mathematics
1 answer:
den301095 [7]3 years ago
8 0
The sum of the measures of angles in all quadrangles is 360 °. Therefore:

(25x+1)+(25x-2)+(20x-1)+82=360\\\\70x+80=360\ \ \ |-80\\\\70x=280\ \ \ |:70\\\\x=4

m\angle D=(20x-1)^o\to m\angle D=(20\cdot4-1)^o=79^o\\\\Answer:\ B.\ 79^o

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Karen and Bill collect coins. Karen has x coins. Bill has 9 coins fewer than three times the number of coins Karen has. Write an
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Answer: Karen has 27 coins.

Step-by-step explanation:

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3 years ago
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PLEASE HELP ASAP!!!
Natalka [10]

Answer:

The company can manufacture 135 boxes of stuffed animals for $5000

Step-by-step explanation:

To find b, substitute $5000 for c(x), so

  • 5000 = 20b + 2300

Then subtract 2300 from both sides of the equation, so

  • 5000 (-2300) = 20b + 2300 (-2300)
  • 2700 = 20b

Finally divide both sides of the equation by 20, so

  • 2700/20 = 20b/20
  • 135 = b

To check your answer substitute 135 in as b...

  • c(x) = 20(135) + 2300
  • c(x) = 5000
5 0
3 years ago
A 4.5-m rope is attached to a 5.4-m rope. However, when the ropes are tied, 4 cm of length is lost to form the knot. What is the
Angelina_Jolie [31]

Answer:

5.9

Step-by-step explanation:

8 0
3 years ago
What is the measure of angle g, in terms of x? x° x° x° 90° 180° – x° 180° – 2x°
choli [55]

The measure of angle G in terms of x is x+x degrees

<h3>Circle theorem</h3>

The measure of angle F and angle D is 90 degrees so that;

<GFD = <GDF = 90 - x

Since the sum of angle in a triangle is 180 degrees, hence;

<G + 90 - x + 90 - x = 180

<G + 180 - 2x = 180

<G = 2x

<G = x + x

Hence the measure of angle G in terms of x is x+x degrees

Learn more on circle theorem here: brainly.com/question/26594685

#SPJ1

3 0
2 years ago
In the △PQR, PQ = 39 in, PR = 17 in, and the altitude PN = 15 in. Find QR.
Licemer1 [7]

Answer:

So, this triangle PQR can be broken into two right triangles, PNQ and PNR, with legs PQ = 39, PN =15, and QN = ? and PR = 17, PN = 15, and NR =? respectively.


Let's solve for what is easier first:

Since we know that 5-15-17 is a Pythagorean triplet, we can infer that NR is 5....like I said earlier, it is a right triangle, so this guess holds true.


Here comes the interesting part:

Now, we have one part of QR, which is QN.

The other part can be solved by using the Pythagorean theorem.

It is (39^2-15^2)^(1/2)..which gives you 36, the square root of 1296, which happens to be the difference between the squares of 15 and 39.

SO, QR = QN + NR

5+36 = 41

QR = 41.

Hope this helps!

3 0
4 years ago
Read 2 more answers
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