Well, the answer would be square root of 3 over 2 because of the unit circle. So, the answer choice should be which ever one involved square root 3 over 2
Answer:
Sin A = 11/61
Step-by-step explanation:
Reference angle (θ) = A
opp = 11
Hyp = 61
Adj = 60
Sin θ = opp/hyp
Sin A = 11/61
A ) 17 because 4*2+9=8+9=17
Answer:
Step-by-step explanation:
I don not understand what is for 4 here. So there are 2 cases:
Case 1: If you mean: log[4(x+20)]= 3
We know 3 = log(10^3)= log(1000)
So we have log[4(x+20)]= log(1000)
so 4(x+20)= 1000
and x+20 = 1000/4
x+20 = 250 and finally x= 250-20, x=230
The solution is 230.
Case 2; If you mean that 4 is the base of logarithm.

and we know that 
So we have 
and x+20 = 81
or x= 81-20
x=61
The answer is 61.
Hope that useful for you, both cases.