Siny/2.7=sin63/2.8
siny=2.7sin63/2.8
y=arcsin((2.7sin63)/2.8)
y≈59.23°  (to nearest one-hundredth of a degree)
        
                    
             
        
        
        
Answer:
A) 50
B) 20
C) 20
Step-by-step explanation:
To solve the first question, we can multiply both sides by 10.
Thus, we get:
6x = 300.
Then, divide by 6, to get x:
x = 50.
You can do the same thing to all of these questions.
I've already checked the answers, but if you don't trust them, just pluck the values in.
For example, let's check the answer for question A.
0.6*50 is supposed to equal 30.
Does it equal? Yes, so we know that the answer is correct.
 
        
             
        
        
        
Answer:
one solution
x = 12
Step-by-step explanation:
3 (x-1) = 2x + 9
3x - 3 = 2x + 9
subtract 2x from each side of the equation:
x - 3 = 9
add 3 to each side:
x = 12
 
        
                    
             
        
        
        
Jamal factored it completely. 
in Jennifer's answer, 3x+3 has a common factor of 3 which can be factored to become 3(x+1) which is what Jamal did.
        
                    
             
        
        
        
We know that
<span>Since a circle is 360 degrees, 
then 
360</span>°-----------> 100%
<span>x </span>°----------> <span>15% 
</span>x=15*360/100-----> x=54°
the answer is
54 degrees