Note that x is measured in radians.
The percent difference or error between sin(x) and tan(x) is calculated as 

We want this percent difference to be less than 10.4%.
Because tan(x) > sin(x) for small values of x, define

From the calculator, obtain
sec⁻¹ 1.104 = 0.4375
Answer:  x = 0.4375 radians
 
 
        
        
        
Answer:
Lines
Step-by-step explanation:
Lines are one dimensional and continue to infinity in both directions. 
 
        
             
        
        
        
Answer:
A -9
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x=90
Step-by-step explanation:
First, it would help to make it so that the x's are not next to fractions. To do this, you can multiply all terms in the equation by 45. 45 is the closest common factor of 9 and 5, the denominators of the fractions. The answer would be;
20x+9x=2610
Then solve.
29x=2610
x=90
 
        
             
        
        
        
It's b because you have to round up