Z = √(10^2 + 8^2 - 2 *10 * 8 * cos(z)
z = arccos(1/8
A = 82.8
Answer is D.
In any right triangle with a 45 degree angle. The hypotenuse is the length of the side times √2
 The answer is 8√2
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Using the power of power rule (multiply the exponents)
 ×
 ×  
        ×
 × 
 
            
When exponents are multiplied, add the answers:
x ^ ( 4/9 + 2/9 )
x ^ ( 6/9 )
x ^ ( 2/3 )
 
        
             
        
        
        
The given expression is
-2x² + 17 - 15x + 7xy
The algebraic expression may be written as
-2x² + 7xy - 15x + 17
The constant term does not contain either x or y.
Therefore  17 is the constant term.
Answer: 17
        
             
        
        
        
C=x.19+.25 
C means the total cost 
X means the extra minutes
        
             
        
        
        
Answer:
$14,467.25     i hope this helps   :)
Step-by-step explanation:
25% of 57,869.00 = $14,467.25