Step-by-step explanation:
For x = 7 or y = f(7)
Graph and solution are in the picture below
 
        
             
        
        
        
Answer:
   2% gain
Step-by-step explanation:
We assume the shopkeeper bought the appliances at the indicated prices, and that gain is computed on the basis of that cost price.
Since the base cost is the same for each appliance, the percentages can be added directly to find the percentage gain on 8000. However, the shopkeeper's total outlay was 16000, not 8000, so the final gain percentage is half of that total.
   gain percent = (-4% + 8%)/2 = 2%
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If you want to see the actual numbers:
   Loss on VCR = 4% × 8000 = 320.
   Gain on TV = 8% × 8000 = 640.
Total gain on 16000 is -320 +640 = 320. As a percentage, that is ...
   320/16000 × 100% = 2%
 
        
             
        
        
        
Answer:
80 + 30h
Step-by-step explanation:
10(8+3h) 
Distribute
10*8 + 10*3h
80 + 30h
 
        
                    
             
        
        
        
Answer:
<h3>Hence required integers are 11 and 13</h3>
Let x an odd positive integer
Then, according to question
x^2 +(x+2)^2=290
2x^2 +4x−286=0
x^2 +2x−143=0
x ^2+13x−11x−143=0
(x+13)(x−11)=0
x=11 as x is positive
Hence required integers are 11 and 13
Step-by-step explanation:
Hope it is helpful....