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anonymous
 one year ago
An airplane is flying at an altitude of 4,600 ft. The pilot sights an object on the ground at an angle of depression of 35°. What is the slant distance from the airplane to the object ?
anonymous
 one year ago
An airplane is flying at an altitude of 4,600 ft. The pilot sights an object on the ground at an angle of depression of 35°. What is the slant distance from the airplane to the object ?

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jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2dw:1441671957196:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2dw:1441671998905:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2do you agree with the drawing so far?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2these angles are congruent dw:1441673560035:dw since they are alternate interior angles and we have a pair of parallel lines

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2so in a sense, we have this triangle dw:1441673599603:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2do you know how to find x ?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2have you learned of trig functions in your lessons?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0No, this is a random question given in a summer assignement, I think I may know, but its better to just explain it to me with the steps

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2oh it's part of a summer worksheet? If you don't know the answer, then it's ok to leave it blank. The teacher wants to see where you are in terms of your math skills. If you don't know the answer, then the teacher knows where to focus the lesson. This will avoid him teaching you things you already know.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Still I wanna know, its being counted as a grade

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2that hardly seems fair to ask you a question you haven't learned about yet, and have it graded

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2is this for geometry or trig class?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0trig class, pls just answer the question

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2take a look at this chart http://passyworldofmathematics.com/Images/pwmImagesSix/TrigRatiosSeven550x398JPG.jpg which two sides are we using?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2no, opp and hyp look at the chart again and verify what I'm saying is correct dw:1441675548088:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2agreed? or no?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2which trig function uses opp and hyp together?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0sin or soh as in from sohcahtoa

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2so sin(angle) = opp/hyp sin(35) = x/4600

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2using a calculator, what is `sin(35)` equal to?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2make sure you are in degree mode what calculator do you have?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I just use google to calculate it, I dont have a graphing calculator..sorry can you get the result for it

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2use this calculator http://web2.0calc.com/

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2try it again and tell me what you get for the value of `sin(35)`

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2so `sin(35) = x/4600` is the same as `0.573576436351 = x/4600`

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2at this point, the trig stuff is gone and we have a normal algebraic equation solve for x to get x = ??

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2idk how you got that

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2what steps did you do to get that?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I think that was wrong, but I have to get x by it self right. So i would need to subtract 4600 0.573576436351

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2hint: undo division (what operation is the opposite of division?)

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2multiply both sides by ________ (fill in the blank)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.04600? idk please help

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yes, multiply both sides by 4600 to isolate x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got x=2638.4516072146

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0But thats not one of the options

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2what are your options?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2oh my bad, I mixed up opp and hyp and I'm just realizing that

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2sin(angle) = opp/hyp sin(35) = 4600/x 0.573576436351 = 4600/x 0.573576436351*x = x*4600/x ... Multiply both sides by x. 0.573576436351*x = 4600 do you see how to isolate x?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0in this case use 0.573576436351 to multiply on both sides?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2you have to undo the multiplication in 0.573576436351*x

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2what undoes multiplication?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yes, you'll divide both sides by _______ (fill in the blank)

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yes, divide both sides by that value

anonymous
 one year ago
Best ResponseYou've already chosen the best response.08019.8552598576954158?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2correct, which rounds to 8019.86

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2you're welcome

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Can you help me with this one too: A large totem pole near Kalama, Washington, is 154 ft tall. On a particular day at noon it casts a 198 ft shadow. What is the sun's angle of elevation at that time?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0here are the options

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2are you able to draw a picture of the problem?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I am not, I cannot display it

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2how about on paper? are you able to draw out the triangle?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0not really, I have no scanners, no tools on my pc nothing, I can still understand without a photo

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2no I mean just for you to see you can describe the picture to me

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2draw out the triangle and then describe the picture

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yeah I cant see it, cause I dont understand how to draw it sorry

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2try to imagine what it would look like in real life draw a vertical pole, then a shadow. what forms?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay totem pole at right (154 ft), and a shadow at the back of the pole which is 198 ft , and the sun at the top of pole giving the shadow to pole

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2you should have this dw:1441679942494:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2which angle do they want? mark it on my drawing

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2click on the pencil to mark on my drawing

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1441680351616:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2it's asking `What is the sun's angle of elevation at that time?` the angle of elevation is actually this angle dw:1441680645165:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2look at that chart I posted above which sides are the 154 and 196 with respect to that marked angle?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0154=totem, and 198=shadow

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2I meant in terms of opp, hyp, adj

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh my bad, it would be: addj, and opp?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yeah let's label our drawing with those dw:1441680960957:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2what trig function uses opp and adj?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2tan(angle) = opp/adj tan(x) = 154/198 I'm making the angle to be x for now

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2now you'll use that calculator I gave you above and type in `arctan(154/198)` the arctan function is the inverse of tangent. It helps find the angles

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2so the angle of elevation is approx 37.87 degrees

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2you're welcome
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