Answer:
 (0,inf)   {y║y>0} 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x = 0, y = 2, and z = -1
Step-by-step explanation:
 
        
             
        
        
        
Answer:

will give you an explanation if you want tag me on comment.
 
        
             
        
        
        
probability that the card drawn is:
- an ace or a king  = 0.1538
- a king or a diamond = 0.3269
<u>Step-by-step explanation:</u>
Here we have , A card is drawn at random from a deck of 52 playing cards. We need to find that Find the probability that the card drawn is:
A deck of standard 52 cards contain four aces. There are four kings in a standard deck of playing cards. So ,we need to find probability that card drawn is either a ace or king i.e.

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A deck of standard 52 cards contain four kings. There are 13 Diamonds in a standard deck of playing cards. So ,we need to find probability that card drawn is either a ace or king i.e.

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Therefore,  probability that the card drawn is:
- an ace or a king  = 0.1538
- a king or a diamond = 0.3269