check all that apply: If sin theta = 15/17 then:
a. tan theta = 15/8
b. csc theta = 17/15
c. coc theta = 17/8
d. sec theta = 17/8

Question

check all that apply: If sin theta = 15/17 then:
a. tan theta = 15/8
b. csc theta = 17/15
c. coc theta = 17/8
d. sec theta = 17/8

anonymous · Answer

so just b?

wolf1728 · Answer

If sin theta = 15/17 then opp=15 and hyp =17
and adj = 17² - 15² = 8² adjacent = 8

then tan theta = 15/8
csc theta = hyp/opp = 17/15
coc ??? theta = ???
sec theta = hyp/adj = 17/8
So, they all apply except I don't know what coc is.

You don't need to know this but looking up the arc sin of theta gives us the angle 61.928 degrees.

anonymous · Answer

I think he meant cot

anonymous · Answer

so cos theta wouldn't apply?

wolf1728 · Answer

Then cot theta = adj / opp = 8/15
so cos theta does NOT apply.

anonymous · Answer

Nope it doesn't :)

wolf1728 · Answer

or does coc mean cotangent or cotangent?

anonymous · Answer

I have no clue what coc means lol

anonymous · Answer

can you help me out with one more please?

wolf1728 · Answer

well okay - but what about coc = 17/8

anonymous · Answer

oh sorry that was a typo :p

jdoe0001 · Answer

@josereyes     so.. what did you get for "a", "b" and "c"?

wolf1728 · Answer

a b and d apply

anonymous · Answer

a survey measures the angle of elevation to a point on a mountain that is 5 miles away to be 12 degrees. the vertical change in elevation from the point where the surveyor is standing to the point on the mountain is (how many) miles.

anonymous · Answer

I'm having a hard time with this one.

wolf1728 · Answer

Okay I'm working on a diagram

anonymous · Answer

Ok

wolf1728 · Answer

So, I guess they are asking for the height of the mountain (the vertical change in elevation)?

anonymous · Answer

Yes i believe so.

wolf1728 · Answer

Okay well can you figure out what to do about figuring it out?
The mountain would be the opposite side and the 5 miles is the adjacent side.

anonymous · Answer

so would i do tan(12) = x/5

wolf1728 · Answer

Yes but remember you want to solve for x so
x = 5 * tan(12°)

anonymous · Answer

i got 1.06 but that doesn't make sense.

wolf1728 · Answer

I get  0.21256 for tan 12° and that times 5 = 1.0628
That makes sense.
And what is the 1.0628 (what units)?

anonymous · Answer

miles

wolf1728 · Answer

Very good and if the answer was to be in feet you would multiply that by what?

anonymous · Answer

wait, so the answer is 1.06 miles? and i don't know what would you multiply it by?

wolf1728 · Answer

there are 5,280 feet in a mile so?

anonymous · Answer

in feet it would be 5596.8

wolf1728 · Answer

or 5,611.584 if you use all the decimals in 1.0628

anonymous · Answer

Oh alright thanks for your help

wolf1728 · Answer

u r welcome :-)