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Elza [17]
3 years ago
11

دائرة مركزها o فيها الوتران cd,ab اذا علمت ان النقطة n نقطة منتصف الوتر cd والنقطة m نقطة منتصف الوترab وكان om=on وطول cn=6cm

Mathematics
2 answers:
Vera_Pavlovna [14]3 years ago
8 0

Answer:

c 24cm

Step-by-step explanation:

DerKrebs [107]3 years ago
5 0

Step-by-step explanation:

12cm

...............

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earnstyle [38]

Answer:

I think B

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4 0
3 years ago
How do I solve this? Please explain step by step,thankyou!
umka2103 [35]

Answer:

Hey there!

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4 0
3 years ago
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PLSSSS HELPPPP<br>What is the value of <br><img src="https://tex.z-dn.net/?f=5%20%5Ctimes%20%7B2%7D%5E%7B3%7D%20%2B%205" id="Tex
tigry1 [53]
5 x 2000 = 10,000 + 5 = 10,005
4 0
1 year ago
Learning Task 4. Solve the problem by applying the sum and product of roots
Delvig [45]

Answer:

<em>Thus, the dimensions of the metal plate are 10 dm and 8 dm.</em>

Step-by-step explanation:

For a quadratic equation:

x^2+bx+c=0

The sum of the roots is -b and the product is c. Note the leading coefficient is 1.

We know the perimeter of the rectangular metal plate is 36 dm and its area is 80 dm^2. Being L and W its dimensions, then:

P=2(L+W)=36

A=L.W=80

Note both formulas are closely related to the roots of the quadratic equation, we only need to adjust the data for the perimeter to be exactly the sum of L+W and not double of it.

Thus we use the semi perimeter instead as P/2=L+W=18

The quadratic equation is, then:

x^2-18x+80=0

Factoring by finding two numbers that add up to 18 and have a product of 80:

(x-10)(x-8)=0

The solutions to the equation are:

x=10, x=8

Thus, the dimensions of the metal plate are 10 dm and 8 dm.

6 0
3 years ago
Figure A
Mashutka [201]

Answer:

The answer is c

Step-by-step explanation:

look at the picture carefully

7 0
2 years ago
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