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highschoolmom2010
Group Title
Find the value of each variable. If your answer is not an integer, express it in simplest radical form
 one year ago
 one year ago
highschoolmom2010 Group Title
Find the value of each variable. If your answer is not an integer, express it in simplest radical form
 one year ago
 one year ago

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Psymon Group TitleBest ResponseYou've already chosen the best response.0
Do you know your trig functions? Like what sin, cos, tan are in regards to a triangle?
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
nope not really
 one year ago

Psymon Group TitleBest ResponseYou've already chosen the best response.0
Ah. Alright, hang on then :P Keep in mind as I write these out, they are all in reference to the angle you are using.
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
that helps alot :DD
 one year ago

Psymon Group TitleBest ResponseYou've already chosen the best response.0
\[\sin = \frac{ opposite side }{ hypotenuse }\] \[\cos = \frac{ adjacent side }{ hypotenuse }\] \[\tan = \frac{ opposite side }{ adjacent side }\] People are ususally taught Soh Cah Toa as a way to remember which sides the trig functions refer to. Now again, these are in reference to your angle, so I'll draw that real quick.
 one year ago

Psymon Group TitleBest ResponseYou've already chosen the best response.0
dw:1375810320869:dw
 one year ago

Psymon Group TitleBest ResponseYou've already chosen the best response.0
dw:1375810420360:dw
 one year ago

Psymon Group TitleBest ResponseYou've already chosen the best response.0
That kind of make sense so far?
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
so far yes
 one year ago

Psymon Group TitleBest ResponseYou've already chosen the best response.0
Okay, cool. So this is your triangle that we have then: dw:1375810542321:dw
 one year ago

Psymon Group TitleBest ResponseYou've already chosen the best response.0
In order to solve this, we need to choose an angle (not the right angle) and then an appropriate trig function, sin, cos, or tan. The one we choose must include the side we know, 10 in this case, and then the value we want to find. that make sense?
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
im not entirely sure how to use them though
 one year ago

Psymon Group TitleBest ResponseYou've already chosen the best response.0
Right, we're getting to that :P I just wanted to see if you were following me so far.
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
oh well yes im following ya
 one year ago

Psymon Group TitleBest ResponseYou've already chosen the best response.0
Okay, cool. So next part: Let's say to find x I choose the 60 degree angle. Now in reference to the 60 degree angle, x is on the adjacent side of it. The value we know is the hypotenuse. Now remember, in reference to the angle we use, we want to choose either sin, cos, or tan. The one we choose now needs to include the adjacent side and the hypotenuse dw:1375811355268:dw
 one year ago

Psymon Group TitleBest ResponseYou've already chosen the best response.0
So which one of the 3, sin, cos, or tan has adjacent and hypotenuse?
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
@Psymon cos?
 one year ago

Zale101 Group TitleBest ResponseYou've already chosen the best response.0
cos = adjacent/hypotenuse so i think @psymon meant that
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
ive never used them so idk im used to using 306090
 one year ago

Zale101 Group TitleBest ResponseYou've already chosen the best response.0
that's correct, because your triangle has 60, and we can predict the other angle is 90. And, 90+60+30=180
 one year ago

jdoe0001 Group TitleBest ResponseYou've already chosen the best response.0
in the 306090 rule the hypotenuse is TWICE as long as the SHORTEST side the "other side" is the SHORTEST side times \(\bf \sqrt{3}\)
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
ok so how do i do this problem
 one year ago

jdoe0001 Group TitleBest ResponseYou've already chosen the best response.0
is really pretty much handed out in a silver plate, with cake and ice cream really
 one year ago

mathstudent55 Group TitleBest ResponseYou've already chosen the best response.1
In a 306090 triangle, the three sides of the right triangle are in the ratio of: \( 1 : \sqrt{3} : 2 \) That means that the shorter leg is 1/2 the length of the hypotenuse. The long leg is \(\sqrt{3} \) times the length of the short leg.
 one year ago

jdoe0001 Group TitleBest ResponseYou've already chosen the best response.0
if "the hypotenuse is TWICE as long as the SHORTEST side" what do you think is the length of the shortest side?
 one year ago

mathstudent55 Group TitleBest ResponseYou've already chosen the best response.1
Here the hypotenuse is 10. The short leg is x. From the statement "the short leg is half the length of the hyopotenuse", what can you conclude about x?
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
dw:1375817625354:dw
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
short leg is 5 :DD
 one year ago

jdoe0001 Group TitleBest ResponseYou've already chosen the best response.0
so there, shortest leg is 5 and the "other leg" is THAT MUCH \(\bf \Large \times \sqrt{3}\)
 one year ago

mathstudent55 Group TitleBest ResponseYou've already chosen the best response.1
Great. That is correct, the short leg, x = 5. The long leg, y, is \(\sqrt{3} \) times longer than the short leg. \( y = \sqrt{3} \times 5 \) What is y
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
so \[5\sqrt{3}\]
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
@mathstudent55 @jdoe0001
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
was that all i need to do???
 one year ago

mathstudent55 Group TitleBest ResponseYou've already chosen the best response.1
correct \(x = 5\) \(y = 5\sqrt{3} \) That is it
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
horray thanks @mathstudent55 & @jdoe0001 & @Psmon @Zale101
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
wish i could give everyone a medal
 one year ago
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