29. explain the error a student found the product of 8 × 10 6 and 5 × 10 9 to be 4 × 10 15 . what is the error? what is the correct product?

Step-by-step explanation:

We are given that the student has found the product of two terms which is wrong and we have to find the correct one

Value 1:

Value 2:

Product of value1 and value 2:

which is wrong

Error in the product:

The answer with error has reduced the value by a power of 10.

They have made one of the following mistakes:

Either the product of 8*5 was written as 4 instead of 40

Or was calculated as because becomes

Correct Product:

Using formula:

8*5 = 40

40 can be written as 4*10 and 10 is the same as

mulitplying them all

which than becomes

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