2 years ago

ECA is a semi equilateral triangle at C,

Mathematics

1 answer:

stiks02 [169]2 years ago

6 0

Answer: its 50

Step-by-step explanation:

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In triangle $ABC,$ point $D$ is on $\overline{AC}$ such that $AD = 3CD = 12$. If $\angle ABC = \angle BDA = 90^\circ$, then what

Neporo4naja [7]

Answer:

$BD=4\sqrt{3}\ units$

Step-by-step explanation:

we know that

$AD=12\ units$

$3CD=12$ ----> $CD=4\ units$

see the attached figure to better understand the problem

Triangles ABD and BCD are similar by AA Similarity Theorem

Remember that

If two figures are similar, then the ratio of its corresponding sides is proportional

$\frac{BD}{AD}=\frac{CD}{BD}$

substitute the given values

$\frac{BD}{12}=\frac{4}{BD}$

$BD^2=48$

$BD=\sqrt{48}\ units$

simplify

$BD=4\sqrt{3}\ units$

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3 years ago

Which expressions are equivalent to -6 +49 +(-6q)?<br> Choose all answers that apply:

Sidana [21]

Answer:

C, none of them are equivalent

BECAUSE

For A, the -4q should be positive 4q to apply

For B, the 2q when distributing with the parentheses should be negative 2q to work with the expression above

Hope this helps!

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GrogVix [38]

Answer:

i would say 18/24

Step-by-step explanation:

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Harrizon [31]

The answer for your question is A

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rodikova [14]

Answer:

Step-by-step explanation:

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