Question

please tell me the answer fast​

Answer 1

Step-by-step explanation:

a famous writer have visited to our school to attend Annual Day celebration prepare a questionnaire to ask him in Telugua famous writer have visited to our school to attend Annual Day celebration prepare a questionnaire to ask him in Telugu

Answer 2

5.

$3 {a}^{2} + 2 {b}^{2} - 7c \\ = 3 \times {2}^{2} + 2 \times {3}^{2} - 7 \times 1 \\ = 3 \times 4 + 2 \times 9 - 7 \\ = 12 + 18 - 7 \\ = 30 - 7 \\ = 23$

6.

$\frac{2}{5} \: \: \: \: \frac{21}{50} \frac{29}{70} \: \: \: \: \frac{3}{7}$

7.

Firstly we will need to subtract the odd numbers till 81 becomes 0

81-1 = 80

80-3 = 77

77-5 = 72

72-7 = 65

65-9 = 56

56-11 = 45

45-13 = 32

32-15 = 17

17-17 = 0

Here we can see that number 81 becomes 0 on the 9th subtraction hence square root of 81 is 9