Question

B) Solve the following questions.
1) A die is rolled. What is the probability that the number appearing on upper face
is less than 3.
2) Find value of a If t = 4 and d= -4
3) If a and ß are the roots of x2 + 5x -1 = 0 then find
i at B
ii) a? + B2
4) Solve x + y = 13 ; x - y = 5
(Any Two)​

Answer 1

Answer:

P(No. less than 3) = 2/6 = 1/3

Answer 2

Answer:

1) 1/3

4) x = 9 and y = 4

Step-by-step explanation:

1) P (getting less than 3, i.e, 1 or 2) = 2/6 = 1/3

Sorry but i was trying to tell answer 4) also but it is showing that I am using rude language so I am not able to write it, It is to be done by substitution or elimination method