Evaluate each expression x=-3,y=6,z=-4what is x+y+(-1)
1 answer:
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Answer:
4512.
Step-by-step explanation:
We are asked to find the number of five-card hands (drawn from a standard deck) that contain exactly three fives.
The number of ways, in which 3 fives can be picked out of 4 available fives would be 4C3. The number of ways in which 2 non-five cards can be picked out of the 48 available non-five cards would be 48C2.
We can choose exactly three fives from five-card hands in ways.
Therefore, 4512 five card hands contain exactly three fives.
Answer:
3/20, -3/10
Step-by-step explanation:
Its a quadratic equation, use the quadratic formula. (-b+-)/2a
20x^2+3x-2=0
(-3+-)/40
(-3+-9)/40
So you get 6/40=3/20 and -12/40=-3/10