Answer:
R(n)=100,000(0.5)^n
Step-by-step explanation:
 
        
             
        
        
        
He was traveling 63 mph 
divide 315 by 5 and you get 63
check your answer by multiplying his speed (63mph) by 5 (number of hours)
        
                    
             
        
        
        
Answer:
1) x = -2
Step-by-step explanation:
1) x + 7 + x + 11 = 14
  2x + 18 = 14
         2x = 14 - 18
      2x =  -4
        x = -4/2 = -2
 
        
             
        
        
        
with it's formula
Area of Triangle = (1/2)(ab)sin(C) – This formula is used when two sides and the angle in between them are known. It can be obtained from the basic formula, Area of Triangle = 0.5 × base × height. The height with respect to side 'a' can be written in as b×sin(C), where C is the angle between a and b.
 
        
             
        
        
        
Answer:
Option A
Step-by-step explanation:
We can try to factorize all the options one by one.
For A:

We can see that the quadratic expression cannot be solved by factorization as the factors at the end of factorization are not equal in both brackets. So Option A is the correct answer for the given question.
Moreover we can also note that all the other quadratic expressions can be factorized ..