Answer:
It is the third option.
Step-by-step explanation:
Since when making an angle of 90º an equivalence is formed between the three points and when joining them the order of the figures is given.
A. miles
b. inches
c. pounds
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:
x = 5
Step-by-step explanation:
Given that,
Cross multiplying both sides,
Taking like terms together,
So, the value of x is equal to 5.
