1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Triss [41]
2 years ago
7

Hello, can anyone help me by answering all these? Please

Mathematics
1 answer:
kompoz [17]2 years ago
8 0

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)

   

You might be interested in
Pls help
Natali5045456 [20]

Answer:

1. Do rise, over run

2. y2-y1 / x2-x1

Step-by-step explanation:

4 0
2 years ago
Which dilation shows an enlargement?<br><br> SEE attached IMAGE!
OLEGan [10]

The last one does

in the first for the image (the letters with ') are on the smaller shape where as on the last one it is on the bigger shape meaning it is the enlargement of TYO

3 0
3 years ago
Read 2 more answers
The formula F = ma shows the relationship between force, mass, and acceleration. Solve this formula for a.
Alchen [17]
Can you please put the formula in
8 0
3 years ago
If three times a number is increased by 4, the results is -8. find the number
skad [1K]

Answer: -4

Step-by-step explanation:

3x + 4 = -8

3x= -12

x = -4

<!> Brainliest is appreciated! <!>

6 0
3 years ago
Read 2 more answers
If C= (-10, -9, -8, -7 ,-6 , -5) and D= ( -6, -5, -4, -3, -2, -1, ) , what is C n D ?
andrey2020 [161]

Answer:

C ∩ D = -5, -6

Step-by-step explanation:

Commons ones in both C and D are -5 and -6

7 0
2 years ago
Other questions:
  • What is the purpose of testing whether β1 = 0? The purpose of testing whether β1 = 0 is to determine whether or not the mean of
    8·1 answer
  • Jeff wanted to see how many smaller boxes will fit into the larger box. Each small box has a side length of 1.5 inches. The larg
    14·1 answer
  • Which number is a factor of 15?<br><br> 6<br> 8<br> 5<br> 45
    14·2 answers
  • What are the constants in this expression?
    5·2 answers
  • HELPPPPP PLEASEEEE!!!!!
    15·1 answer
  • HELP!!!! If you help me with this you’ll be my favorite person ever
    15·1 answer
  • Use the given information to write an equation of a line that contains a slope of 4 and passes through (-2, -6). Write your answ
    7·1 answer
  • Write an equation of a line in slope-intercept form with the given slope and y-intercept slope:8,y-intercept:-3
    13·2 answers
  • The regular price of a tennis racquet is $79.99 and the sale price is $64.99. Find the percent of discount to the nearest whole
    14·1 answer
  • Need help. <br>Please show your work if possible!!​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!