Answer:
y =
Step-by-step explanation:
Given
y = x - 3 ← substitute x = 5
y = × 5 - 3
= - 3
= - =
Since there is no repetition allowed, there are 10 possibilities for the 1st digit, 9 for the 2nd, 8 for the 3rd, and 7 for the 4th. This gives a total of (10)(9)(8)(7) = 5040 four-digit codes.
For all odd digits to be used, there are 5 possibilities for the 1st digit (1,3,5,7,9), 4 for the 2nd, 3 for the 3rd, 2 for the 4th. This gives a total of (5)(4)(3)(2) = 120 codes that only use odd digits.
Therefore there are 5040 - 120 = 4920 codes that do not consist of all odd digits. The probability is 4920/5040 = 41/42.
Answer: well basically the chance of getting a heart is 1 in 4 and the chance for diamond is also 1 in 4 so you would multiple that and get 1 in 8 so an exact chance of 1/8
Step-by-step explanation: