Answer:
3/5
Step-by-step explanation:
sin theta=opposite/hypotenuse
4/5=opposite/hypotenuse
therefore opposite=4 and hypotenuse=5
for adjacent
using pythagoras theorem
a^2+b^2=c^2
opposite^2 + adjacent^2 =hypotenuse^2
4^2 + adjacent^2 =5^2
16 + adjacent^2 =25
adjacent^2 =25-16
adjacent =
adjacent=3
cos theta=adjacent/hypotenuse
=3/5
therefore the value of cos theta is 3/5
30,000
the way you can solve this is by removing all numbers in front of the selected number(in this case, 2 should be removed) then change all numbers behind to 0.
If I understand correctly the answer is 49 feet 11 inches
Answer: I think it is 40%
(1) On the unit circle, you have
when
, and more generally this is the case whenever you perform a full rotation about the origin. This means
any time
where
is any integer.
(2) When
, you have
.
(3) When
, you have
.
(4) The law of sines says that
(5) The law of cosines says that
