OpenStudy (anonymous):

HELP PLEASE! The figure below shows CB = 4, BE = 5, AB = x - 4, and DB = x + 3. Triangle ABC is a right triangle with measure of angle ACB equal to 90 degrees. The measure of side CB is 4 and AB is x minus four. D is a point on the left of C on BC extended. A point E is labeled on AB such that DE is perpendicular to AB. Measure of EB is 5 and DB is x plus 3. If △ABC ~ △DBE, the value of x is _________

4 years ago
OpenStudy (anonymous):
4 years ago

OpenStudy (anonymous):

I don't understand this ):

4 years ago
OpenStudy (anonymous):

you are given 2 triangles that are similar. therefore the corresponding parts are proportional.

4 years ago
OpenStudy (anonymous):

You can set up a ratio and proportion

4 years ago
OpenStudy (anonymous):

How do I do that?

4 years ago
OpenStudy (anonymous):

EB/CB = DB/AB Plug in the given values, and you can now solve for x

4 years ago
OpenStudy (anonymous):

Gah, I don't know ): Can't figure it out!

4 years ago
OpenStudy (anonymous):

5/4 = (X+3)/ (X-4) You can now cross multiply 5(x-4) = 4(x + 3) I guess you can do the rest

4 years ago
OpenStudy (anonymous):

don't forget the distributive property

4 years ago
OpenStudy (anonymous):

-8 or 8?

4 years ago
OpenStudy (anonymous):

5X -20 = 4X + 12 You can now solve for x

4 years ago
OpenStudy (anonymous):

42?

4 years ago
OpenStudy (anonymous):

20+ 12 = ?

4 years ago
OpenStudy (anonymous):

32 lol

4 years ago
OpenStudy (anonymous):

Hahaha! you are careless. Just be more confident. Students tend to be confused when they are tense

4 years ago