Answer:
c
Step-by-step explanation:
 
        
             
        
        
        
Step-by-step explanation:
use CAH method (Cos angle = adjacent/hypotenuse)
Given adjacent = 5
Hypotenuse = 12,

 
        
             
        
        
        
Answer:
None (no solutions)
Step-by-step explanation:
-10q=-10q-7 (add 10q to both sides to get the costant 7 by itself)
-10q+10q=-10q+10q-7
0=-7 ( zero will never equal -7 hence there are no solutions to this equation)
 
        
             
        
        
        
Answer:
We don´t have at 95% of confidence, evidence to reject the publisher´s claim
Step-by-step explanation:
Population mean      p₀ = 58 %    or    p₀ = 0,58  
Hypothesis Test:
Null Hypothesis                  H₀           p  =  p₀
Alternative Hypothesis      Hₐ           p  <  p₀
For a significance level α = 0,05  means that CI = 95 % or  CI = 0,95
z(c) = - 1,64
MOE = z(c)* √(p*q)/n
p  -  p₀  / √(p*q)/n  = z(s)
And  that  z(s) is in the acceptance region 
|z(s)| < |z(c)|
|z(s)| < 1,64
Then if that so we fail to reject H₀ . We don´t have evidence to reject the publisher´s claim
 
        
             
        
        
        
Answer:
there is no mode 
Step-by-step explanation:
because there is no doubles