Question

please answer the question. ​

Answer 1

Answer:

5. a) is correct

6 d) is correct

7 c) is correct

Answer 2

Answer:

Step-by-step explanation:

QUESTION 5

Total number of outcome when two coins are tossed = ( 2 )²

                                                                                            = 4

The 4 outcomes are :-

  coin 1                coin 2

 Heads                Heads       ( 1 )

 Heads                 Tails         ( 2 )

  Tails                   Heads      ( 3 )

  Tails                    Tails        ( 4 )

The required outcomes are outcome 2 , 3 and 4

So the probability of at most one head = 3 / 4

QUESTION 6

Suppose one of the zero is α and another one is β .

The product of zeros of quadratic polynomial is c / a

So,

α × β = c / a

α × 1 / α = k / 3  [one zero is reciprocal of other so one α and                                                                                                      other is 1 / α]

1 = k / 3

3 = k

QUESTION 7

The decimal expansion of the given number will terminate after 5 decimal places this is because in denominator the highest power of is 5 and there is no other number in denominator other than 2 and 5 .