Question

Write a number in usual form 1.6×10-^19​

Answer 1

Answer:

CSA of a hemisphere=2πr

2

=2×

7

22

×14×14cm

2

CSA of the hemisphere=1232cm

2

TSA of a hemisphere3πr

2

=3×

7

22

×14×14cm

2

TSA of a hemisphere=1848cm

2

.

Answer 2

Answer:

To convert a big number(positive powers of 10) to its usual form we need to move the decimal to its right by the number of places equivalent to the power of 10.

Step-by-step explanation:

=> 1∙160+6∙16-1+14∙16-2+1∙16-3+9∙16-4 = 1∙1+6∙0.0625+14∙0.00390625+1∙0.000244140625+9∙1.52587890625E-5 = 1+0.375+0.0546875+0.000244140625+0.0001373291015625 = 1.4300689697265610

got It: 1.6e1916 =1.4300689697265610

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