Answer:
r=21
Step-by-step explanation:
r-15=6
r=6+15
r=21
Answer: x= 9y - 77 its vertical intercep 0, -77
Answer:
x=3
Step-by-step explanation:
4(x-2)=4. divide both sides by 4
x-2=1. add 2 to both sides
x=3
Answer:

Step-by-step explanation:
Let us use the identity
sin(A+B)= cos(A) sin(B)+cos (B) sin(A) to simplify the given expression
Then
--------------------(1)
Here
---------------------(2)
---------------------(3)
Substituting the values in (1)


