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rebeccaskell94
Group Title
@SmoothMath I need your help D:
Use △DEF, shown below, to answer the question that follows.
http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0402_02/0402_G2_Q3.gif
What is the value of x rounded to the nearest hundredth?
 2 years ago
 2 years ago
rebeccaskell94 Group Title
@SmoothMath I need your help D: Use △DEF, shown below, to answer the question that follows. http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0402_02/0402_G2_Q3.gif What is the value of x rounded to the nearest hundredth?
 2 years ago
 2 years ago

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SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
What have you tried so far?
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
dw:1341504473383:dw
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
This is very similar to the kind of problem I taught you before.
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
Well I looked at the triangle and saw that like EF is opposite and DE is adjacent sooo I use tan?
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
Very good. Keep going. Use tangent to set up the equation.
 2 years ago

mathslover Group TitleBest ResponseYou've already chosen the best response.0
soa cah toa .. tan (theta)= opposite / adjacent .. good u r going right best of luck
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
soh cah toa*
 2 years ago

ivandelgado6 Group TitleBest ResponseYou've already chosen the best response.0
SmoothMath help me
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
Sorry, Becca is cuter.
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
:3> xD thanks Okay, um Tan(45) = x/55 ?
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
x= 2,475
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
Looks good. Solve for x and then round to the nearest hundredth like they ask.
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
Oh wait. One problem with your equation. The angle isn't 45.
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
lol derp. 49 Tan(49) = x/55 x= 2,695
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
or just 2700
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
I don't know what you did, but 2,695 is super super off.
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
D: I thought it was 49 x 55 to find out x to then divide it and then make it like...right =2695/55 = 49
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
TANGENT of 49... super different from 49. Use your calculator to find out what tan(49) is. Make sure you're in degrees and not radians.
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
tan(49) = x/55 Just solve for x, then let your calculator do the trig function for you.
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
my calculator doesn't do anything but x/55
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
It really doesn't have sin cos tan buttons on it? You'll need to use a different calculator then, or else use google or alpha.
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
This is what I use http://web2.0calc.com/
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
Or is it just the 1.15 thing
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
ohhh like tan(49) = 1.15/55 ?
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
Far left, below pi, you'll see the buttons sin, cos, and tan. Those are your trig functions. To do this one, click tan, then 49, then ). Should look like this: I've boxed the trig function buttons in blue and the way to switch between degrees and radian modes in green.
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
Becca, please don't forget how to do simple algebra. tan(49) = x/55 How do you solve for x?
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
49/1 • x/55? ... My brain...it's dying. :(
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
multiply both sides by 55. _
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
__ dollface 49 • 55 and x/55 • 55?
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
not 49*55. tan(49)*55
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
and what is x/55 * 55?
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
oh my goodness. Becca, can you solve this equation for me? 4 = x/2
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
Same dang thing here. tan(49) = x/55
 2 years ago

Wolfboy Group TitleBest ResponseYou've already chosen the best response.0
55*49.........
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
Wrong, wolfboy.
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
Its not just 55*49 D: he said it's tan(49) :(
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
55* tan(49)
 2 years ago

Wolfboy Group TitleBest ResponseYou've already chosen the best response.0
I. Thought sooo......hmmmmmm
 2 years ago

Wolfboy Group TitleBest ResponseYou've already chosen the best response.0
Sooo we need the formula for tan or a couculater
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
63.27?
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
Yes. Let me just show you the last 2 steps. You got as far as tan(49) = x/55 multiply both sides by 55. That's basic algebra, solving for x. 55*tan(49) = x tan of 49, when you put in your calculator is 1.15036841 and 55*(1.15036841) = 63.2702625 then, of course you round to the nearest hundredth.
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
Thank you dollface :D Sorry if I frustrated you :c
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.4
You didn't, cutesie buttons. I'm happy to help. =)
 2 years ago

rebeccaskell94 Group TitleBest ResponseYou've already chosen the best response.1
Yay :D
 2 years ago
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