Question

Did I solve these two questions correctly so far? I'm having trouble solving #2

Answer 1

@Nnesha Can you check for me?

Answer 2

@Nnesha

Answer 3

I confidently got 8.6 for my first method.

Now I don't know what other method to use :/

Answer 4

hmmm. are you in school right now ?

Answer 5

Do I see "Graded Assignment" on this worksheet?

Won't check your work, but will answer specific questions about #2.

Answer 6

No this is just HW.

Answer 7

Questions?

Answer 8

What other method should I use to solve this problem

Answer 9

I did the Tan55=15/opp but I'm not sure if that's the method I should use.

Answer 10

hmm ok.
you skipped one step for 1st question.
how did you get pi/6 ??

Answer 11

To be honest, your worksheet is hard to read.

I can just barely make out the instructions.

To find the length of the shorter side, you could use the Pyth. Theorem, or continue to use trig.

Specific questions about that?

Answer 12

@Nnesha from 17pi/6

Answer 13

@mathmale what numbers should I plug in?

Answer 14

Please provide structure (equations) and specify what your objective is.

Answer 15

What I have so far is tan55=15/opp

Answer 16

Is that the correct equation to use to solve the shorter leg of triangle ABC

Answer 17

AB is your hypotenuse. The longer leg (not the hyp) is of length 15. You want the shorter side? Personally I'd write out\[\tan 35=\frac{ opp.side }{ adj.side }= \frac{ x }{ 15 }\]

Answer 18

Please go over my suggestion. Does it make sense to you? If not, ask questions. if wrong, say so.

Answer 19

the hypotenuse is not 15?

Answer 20

Wow that is very helpful!!

Answer 21

No, it's not. The hypo is the longest side. That 15 denotes the length of the longer leg, not the length of the hypot.

Answer 22

My great pleasure.

Answer 23

Where would I go from there? do I divide? I know tan 35 =.7

Answer 24

So my answer for a is wrong. How would I find the length of the hypotenuse?

Answer 25

as before, tan 35 deg = opp / adj

...which you could (if you wish) solve for the unknown, which is the opp side.

Skipping that step, we get 0.700 = opp / 15.

Mult both sides of this equation by 15 to clear out the fraction.

Write your answer as follows: opp = ( ? ) (0.700) = value?

Answer 26

10.5

Answer 27

Do you know what I did wrong on my first method?

Answer 28

I haven't done the math, but that looks very reasonable.

If you want to check your work, find the length of the hypo. using the Pyth. Thm.
and then determine whether (length of hyp) * sin 35 deg gives you the same 10.5 result.

Answer 29

I solved using sin(theta)

Answer 30

Again, the material is hard to read, so I'm not spending much time with it. The major fault by far is that you considered the side of length 15 to be the hypotenuse. That side is not the hyp.; rather, it's the longer leg.

Answer 31

Can I write it out for you? Maybe it'b be easier. Trig is very hard for me to grasp.

Answer 32

There's more than one way in which to skin a cat.

You could use 35 deg, 55 deg, theta, whatever, but you must recognize that the side labeled 15 is not the hyp.

Can you adjust your cell phone camera to produce a brighter image with more contrast?

Answer 33

How do I solve for the hypotenuse. I can get everything else, I just assumed 15 was the answer.

Answer 34

c2=a2+bc?

Answer 35

Between the 2 legs of your triangle you see a box:

Answer 36

yes, (opp)^2 + (15)^2= (hyp)^2.

Answer 37

How do I solve for the hypotenuse not knowing what the opp side is (even though I do)

Answer 38

You'd use the cosine function.

This says: cos 35 deg = adj/ hyp

Here, your adj side has length 15.

Thus, cos 35 = 15/hyp ... this can be inverted to obtain \[\frac{ 1 }{ \cos 35 }=\sec 35= \frac{ hyp }{ 15 }, or 15 \sec 35 = hyp\]

Answer 39

Your calculator does not have "sec" so you'll have to stick with the cosine function.

1 / cos 35 = 1 / 0.8192 = hyp / 15

Answer 40

So 15/cos 35 = hyp

or 15 / 0.8192 = hyp

Answer 41

18.3?

Answer 42

I'm not checking this math, but would readily say your answer looks appropriate. It's larger than 15 and larger than 10.5, and thus suits the longest side.

Answer 43

Thank you so much!!!

Answer 44

If you want to be sure, check whether (18.3)^2 = (15)^2 + (10.5)^2.

Answer 45

My great pleasure; appreciate your interest and perseverance. Best wishes!