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Romashka [77]
3 years ago
9

Which statements are true?

Mathematics
2 answers:
RSB [31]3 years ago
6 0

Answer:

A, C, D and E

Step-by-step explanation:

Hope it helps :D

Arturiano [62]3 years ago
5 0

Answer:

A,C,D and E

Step-by-step explanation:

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Can someone please help me with the questions in the images. if they are correct i will mark as brainliest
valentina_108 [34]

Answer:

6) x=9.75

10) Triangle OMN ~ Triangle ODK; SSS ~

11) SSS ~ theorem

12) SSS ~ theorem

Step-by-step explanation:

For #6, since the polygons are similar, then it must mean AD is congruent to JM and CD is congruent to LM. Now we can set up the proportion 39/20=x/5 and solve. Solving for x gets us x=9.75, so C is the correct choice

For #10, there's no information about angles whatsoever in the diagram, so B and C must be wrong. D must be wrong as well because if the triangles weren't similar, then why is OJ ~ JM and OK ~ KN? So thus, the triangles are similar by SSS.

For #11, this is sort of a no-brainer because there's no mention of angles, so D must be correct.

For #12, same concept, no mention of angles, all sides are similar to their respective sides of the different triangles, so A is correct.

5 0
3 years ago
Can you solve this in a good way please
IRINA_888 [86]

Answer:

5/2 x^2y^2

Step-by-step explanation:

( x^2 - 3/5y^2)^2 + (3/4 x^2 + 4/5 y^2)^2 - (5/4x^2 - y^2)^2

=  x^4 - 6/5x^2y^2 + 9/25y^4 + 9/16x^4 + 6/5x^2y^2 + 16/25y^4 - ( 25/16x^4

- 5/2x^2y^2 + y^4)

Distributing the negative over the parentheses:-

=  x^4 - 6/5x^2y^2 + 9/25y^4 + 9/16x^4 + 6/5x^2y^2 + 16/25y^4

- 25/16x^4

+  5/2x^2y^2 - y^4

Bringing like terms together

x^4 + 9/16x^4 - 25/16x^4 - 6/5x^2y^2 + 6/5x^2y^2 +  5/2x^2y^2   +  16/25y^4 + 9/25y^4

- y^4  

Adding like terms:-

= 5/2 x^2y^2  Answer

8 0
3 years ago
What is three plus fourteen
EleoNora [17]
The correct answer is 17
5 0
3 years ago
Tina recorded the number of calories she burned during a bike ride. The graph shows Tina’s calories burned, y, after x hours. If
m_a_m_a [10]

Answer:

hgo87ii76r7687ro

Step-by-step explanation:

8 0
3 years ago
Find the equation of the line that contains the point (21,27) and is parallel to the x-axis.
Stells [14]

Answer:

y - 27 = 0 (x - 21) or y = 27

Step-by-step explanation:

8 0
3 years ago
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