Question

Subtract 1.35 from 3.51 _________

12. 36.7 ÷ 10 = _________

13. The product of (x+5) and (x-5) is _______

14. The factors of x2 – 4x + 4 are __________

15. a

2 + 2ab + b2 = __________

16. x

2 + x (a + B) + ab = _________

17. The average of the marks 2,9,5,4,4,8,10 is _______

18. The average of integers between -10 and 10 is _________

19. The median of the data 12,14,23,25,34,11,42,45,32,22,44 is _________

20. Circles drawn in a plane with a common centre and different radii are called answer Only​

Answer 1

Step-by-step explanation:

12. 3.67

13. x²-25

14. 2

15.

16.

17. 6

18.

19. 27.63

20.

Answer 2

Answer:

2.16

12. 3.67

13. x2+25

14. a=1 , b=4 , c=4

15. (a+b)

16.

17. 5

18.

19. 25

20. The circles having same centre but different radii are called as concentric circle. Because centre of two circles coincide.