The first numerator is 3 and the second is 17 not 2
        
             
        
        
        
Answer:
1. 8.19, 2. 25.96, 3. 3.95
Step-by-step explanation:
use soh cah toa
1. cos is adjacent/hypotenuse
cos73=x/28
multiply both sides by 28
28cos73=x=8.186
2. sin is opposite over hypotenuse
sin68=x/28
multiply both sides by 28
28sin68=x=25.961
3. sin is opposite over hypotenuse
sin26=x/9
myltiply both sides by 9
9sin26=x=3.945
 
        
             
        
        
        
Parameterize  by
 by

with  and
 and  . Take a normal vector to
. Take a normal vector to  ,
,

which has norm

Then the integral of  over
 over  is
 is


 
        
             
        
        
        
Answer:
a. 20
Step-by-step explanation:
just multiply 5 and $4 by 4