Question

1. Add the following decimals. a) 378.96 + 234.35 + 45.6
b) 456.78 +23.90
c) 32.9 + 12.6 + 34.5
d) 200.9 + 100.09 + 25.78
solve it fast ​

Answer 1

Answer:

“A cell is defined as the smallest, basic unit of life that is responsible for all of life's processes.” Cells are the structural, functional, and biological units of all living beings. A cell can replicate itself independently. Hence, they are known as the building blocks of life.

Answer 2

Step-by-step explanation:

Classify the following numbers as rational or irrational:

i) √23  ii) √225  iii) 0.3796  iv) 7.478478...  v) 1.101001000100001...

Solution:

i) √23

√23 = √23/1 = p/q, but p is not an integer.

Hence √23 is an irrational number.

ii) √225

√225 = 15/1 = p/q, where p and q are integers and q ≠ 0.

Hence √225 is a rational number.

iii) 0.3796

0.3796 is a rational number because it is a terminating decimal number.

iv) 7.478478...

7.478478... is a rational number as it is a non-terminating recurring decimal i.e, the block of numbers 478 is repeating.

v) 1.101001000100001 . . . .

It is an irrational number because it is a non-terminating and non-recurring decimal.