anonymous
  • anonymous
@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?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
What have you tried so far?
mathslover
  • mathslover
|dw:1341504473383:dw|
anonymous
  • anonymous
This is very similar to the kind of problem I taught you before.

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anonymous
  • anonymous
Well I looked at the triangle and saw that like EF is opposite and DE is adjacent sooo I use tan?
anonymous
  • anonymous
Very good. Keep going. Use tangent to set up the equation.
mathslover
  • mathslover
soa cah toa .. tan (theta)= opposite / adjacent .. good u r going right best of luck
anonymous
  • anonymous
soh cah toa*
anonymous
  • anonymous
SmoothMath help me
anonymous
  • anonymous
Sorry, Becca is cuter.
anonymous
  • anonymous
:3> xD thanks Okay, um Tan(45) = x/55 ?
anonymous
  • anonymous
x= 2,475
anonymous
  • anonymous
Looks good. Solve for x and then round to the nearest hundredth like they ask.
anonymous
  • anonymous
Oh wait. One problem with your equation. The angle isn't 45.
anonymous
  • anonymous
lol derp. 49 Tan(49) = x/55 x= 2,695
anonymous
  • anonymous
or just 2700
anonymous
  • anonymous
I don't know what you did, but 2,695 is super super off.
anonymous
  • anonymous
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
anonymous
  • anonymous
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.
anonymous
  • anonymous
tan(49) = x/55 Just solve for x, then let your calculator do the trig function for you.
anonymous
  • anonymous
my calculator doesn't do anything but x/55
anonymous
  • anonymous
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.
anonymous
  • anonymous
This is what I use http://web2.0calc.com/
anonymous
  • anonymous
Or is it just the 1.15 thing
anonymous
  • anonymous
ohhh like tan(49) = 1.15/55 ?
anonymous
  • anonymous
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.
1 Attachment
anonymous
  • anonymous
Becca, please don't forget how to do simple algebra. tan(49) = x/55 How do you solve for x?
anonymous
  • anonymous
49/1 • x/55? ... My brain...it's dying. :(
anonymous
  • anonymous
multiply both sides by 55. -_-
anonymous
  • anonymous
-__- dollface 49 • 55 and x/55 • 55?
anonymous
  • anonymous
not 49*55. tan(49)*55
anonymous
  • anonymous
and what is x/55 * 55?
anonymous
  • anonymous
1?
anonymous
  • anonymous
oh my goodness. Becca, can you solve this equation for me? 4 = x/2
anonymous
  • anonymous
8
anonymous
  • anonymous
Same dang thing here. tan(49) = x/55
Wolfboy
  • Wolfboy
55*49.........
anonymous
  • anonymous
Wrong, wolfboy.
anonymous
  • anonymous
Its not just 55*49 D: he said it's tan(49) :(
anonymous
  • anonymous
55* tan(49)
Wolfboy
  • Wolfboy
I. Thought sooo......hmmmmmm
Wolfboy
  • Wolfboy
Sooo we need the formula for tan or a couculater
anonymous
  • anonymous
63.27?
anonymous
  • anonymous
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.
anonymous
  • anonymous
Thank you dollface :D Sorry if I frustrated you :c
anonymous
  • anonymous
You didn't, cutesie buttons. I'm happy to help. =)
anonymous
  • anonymous
Yay :D

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