Answer:
or 
Step-by-step explanation:
The given equation is

Let us treat this as a quadratic equation in
.
where 
The solution is given by the quadratic formula;

We substitute these values into the formula to obtain;





or 
or 
or 
or 
There’s no a in the the equation
Answer:
BAC=15
Step-by-step explanation:
angle BOA= 180-30= 150
triangle BAO is
isosceles because it has two equal sides, radii of a circumference so the angles ABO=BAO=(180-150)/2=15
Answer:
y=-9
Step-by-step explanation:
-3(y+2)=21
1st Open parenthesis
-3y-6=21
+6 +6
-3y=27
/-3 /-3
y=-9
If tan theta =12/5 and cos theta < 0, then sin theta is -12/13.
The correct answer between all the choices given is the last choice or
letter E. I am hoping that this answer has satisfied your query about and it
will be able to help you.