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astra-53 [7]
2 years ago
14

If PQ = QR, find x. NEED HELP.

Mathematics
1 answer:
max2010maxim [7]2 years ago
4 0

Answer:

x=-3,5

Step-by-step explanation:

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Hello, can anyone help me by answering all these? Please
kompoz [17]

Answer: See step by step

Step-by-step explanation: For A my 15 statements are.

  1. It has 3 triangles inside it, ACD, ADC, and ABC
  2. It has 2 right triangles, and 1 isoceles
  3. AC≅AB
  4. CD≅DB
  5. D is midpoint of CB
  6. AD⊥CB
  7. Angle CDA=90 degrees
  8. Angle  BDA equal 90 degrees
  9. AD≅AD
  10. ΔCDA≅ΔBDA by any congruence theorem, (SSS, SSA,AAS,ASA, HL)
  11. AD^{2}+ DB^{2}=AB^{2}

 12.AD^{2}+ CD^{2}= AC^{2}

   13. Triangle ABC has a max of 180 degrees.

     14. We can rotate this triangle 180 degrees and it will coincide.

       15. We can reflect triangle ACD over vertical line ACD and it will be congruent to ABD.

 2.  We use pythagorean theorem since it has a right angle.

      AD^{2}+ DB^{2}=AB^{2} Let plug it in.

      40^{2}+b^{2}=45^{2}

        1600+ b^2=2025

      b^2=424

      sqr root of 425 is about 21. Now let find the perimeter.

      AB is 45, Since BD+DC=CB, and they are congruent they are equal so 21+21=42 and AC is congruent to AB so it is 45. So the perimeter is  132.

  For 3. Start at the orgin, then go up 5 on the y-axis so you should be at (0,5)

   Then use the rise over run method to graph it. go left -3 and and up 1. Keep doing that 2 more times then draw a straight line.  

Your 3 point should be

(0,5)

(1,2)

(2,1)

   

8 0
2 years ago
What is the correct answer for this problem?Explain
bearhunter [10]
To solve this you would make a triangle, Assuming you had a piece of paper.

It would look like the picture included (where ever that is) sorry for the horrible drawing with mouse.

You can then you Pythagorean Theorem to solve this

a^{2} + b^2 =c^2

width will be (a) 

put in your variables

a^2 + 72^2 = 90^2
a^2 + 5184 = 8100

Subtract 5184 over and get 
a^2 = 2916

square root both sides and get 
a=54

the field is 54 meters wide
  

8 0
3 years ago
Read 2 more answers
MULTIPUL ANSWER CHOICE GIVE ME MORE THAN 1 ANSWER AND MAKE IS CORRECT! PLEASE AND THANK YOU!
barxatty [35]

Answer: The opposite of the opposite of a number is the number itself. And the opposite of the opposite of a number is the number itself.

Step-by-step explanation:

6 0
2 years ago
The Pythagorean Theorem can only be used with which type of triangle?
valkas [14]
Right triangle because  a2<span> + b</span>2<span> = c</span><span>2</span>
4 0
3 years ago
What happens to the volume of a rectangular prism when the length and width are double and the height is tripled
Andrei [34K]

The volume goes up by a factor of 2 * 2 * 3 = 12 times.

3 0
3 years ago
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