Answer:
 or
  or 
Step-by-step explanation:
we know that
Applying the law of cosines

In this problem we have



substitute the values



 
        
                    
             
        
        
        
Answer:1,750,000,000
Step-by-step explanation:first the number ten to the fifth power is 1,000,000 then times five is 5,000,000. Then the number ten to the negative fifth power is 50 times seven is 350. 5,000,000 times 350 is 1,750,000,000
 
        
             
        
        
        
80% of quizzes + 20% of final = final grade
80% * 73 + 20% * x = 70
0.8 * 73 + 0.2x = 70
58.4 + 0.2x = 70
0.2x = 11.6
x = 58
        
             
        
        
        
Answer:
125%
Step-by-step explanation:
1. Set up the equation 
425/340 = x/100
(percentages are out of 100 so this equation means 425 out of 340 is equal to a number out of 100) 
2. Cross multiply 
340x = 42500
3. Solve for x 
x = 125
 
        
                    
             
        
        
        
The total price of the vehicle would be $<span>20,150</span>