3a^2 B^3 C^-2 OVER a^-3 b^6 c^3
        
             
        
        
        
4,000 +000 +00 + 0     is stander form for four thousand 
        
                    
             
        
        
        
Answer:
The answer is C, the coefficient.
 
        
             
        
        
        
Answer:
joint variation means L (safe load) is directly proportional to both w and d2
 
inverse proportionality means L = k/l
So the equation is:
 
L = k(wd2/l)
 
You are given:
w = 6 in
d = 5 in
l = 12 ft
L = 7666 lbs
 
7666 = k(6*52/12)
 
Solve for the constant, k.
7666 = k (6*25/12)
7666 = k (150/12)
7666 = k (12.5)
613.28 lbs/(ft.in3) = k
 
Use this k-value to solve for L in the last part of the question.
 
What safe load, L would a beam 3 in. wide, 7 in. deep and 15 ft long of the same material support? (Round off your answer to the nearest pound.)
 
w = 3 in
d =7 in
l = 15 ft
k = 613.28 lbs/(ft.in3)
 
Final Safe load = 6010.144 lbs *** Edited for clarity and to fix a multiplication erro
 
        
             
        
        
        
Answer:
c true 
Step-by-step explanation:
1st u read the problem and thensolve the problem