How do you do find a? And how can you tell if it is sin, cos, or tan?
2 answers:
30 60 90 triangle
ratio of short leg : hypo = x : 2x
given short leg x = 4 ft
so hypo a = 2x = 2 * 4 = 8
answer
a = 8 ft
----------------------------------------------
P.S.
if you need to do by using cos sin tan then
Cos (60) = Adj/Hypo = 4/a
a = 4/cos(60) as you know cos(60) = 1/2
so
a = 4 /(1/2 = 4 * 2/1 = 8
answer: a = 8 ft
Using SOH CAH TOA so you're finding tye Hypotenuse and you're using the Adjacent side meaning you would use cos :)
You might be interested in
Answer:
2
Step-by-step explanation:
-4x -y + 4
=-4*-1/4 -3 + 4
=1+1
=2
14/21 is 2/3 simplified.
9/15 is 3/5 simplified.
and 3/8 can not be simplified, so it's 3/8
We use the formula 
where d is distance, s is speed and t is time.
Therefore, a car would tracel 480 km.
Answer:
(6-√21, 6+√21)
Step-by-step explanation:
x^2 - 12x = -15
(x - 6)^2 - 36 = -15
(x - 6)^2 = 21
x - 6 = ± √21
x = 6 ± √21
1 and 1/2 is the right one
