Tan 32=9/x
x=14.4
cos29=x/7
x=6.12
        
             
        
        
        
I assume that you meant RS and ST are segments of RT.  If that is true then:
RS+ST=RT, using the values for these given...
8y+4+4y+8=36  combine like terms on left side
12y+12=36  subtract 12 from both sides
12y=24  divide both sides by 12
y=2
        
             
        
        
        
Answer:
59.08
Step-by-step explanation:
 
        
             
        
        
        
The difference of the expression  is
 is 
<h3>How to determine the difference?</h3>
The expression is given as:

Factor the denominators of the expressions:

Apply the difference of two squares to x² - 9

Take LCM

Hence, the difference of the expression  is
 is 
Read more about expressions at:
brainly.com/question/723406
#SPJ4
 
        
             
        
        
        
Answer:
1. x = 39.67
2. x = 15
3. x = 49.29
4. x = -12.8
5. x = 96
6. x = 42
7. x = 36
8. x = 0
9. x = 78
Step-by-step explanation:
Just remember to always isolate the unknown. Here are the solutions to your problem. I will explain each step for the first for you to give you an idea how the others were worked out. 
1.  
   
Add 2 to both sides to get rid of -2 on the left side. 

Multiply both sides by 7 to get rid of 7 on the left side. 

Divide both sides by 3 to get rid of 3 on the left side.

You could also transpose everything by the x to the other side of the equation. Just remember that whatever OPERATION used on the original side, must be opposite on the other side. I'll use the second problem to show this.

Transpose  1 on the left to the right. It is addition on the left, then it would be subtraction on the other side.

Transpose 5 from the left side to the right. It is division on the left, then it would be multiplication on the right. 

Transpose 2 from the left side to the right. It is multiplication on the left, then it would be division on the right.

Let's move on with the rest now.
3.

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9.
 