7. Convert 3.57 x 106 into standard (long) form. a) 0.0000357
b) 0.000357
c) 3570000
d) 0.00000357
e) 357000

c) 3570000

Explanation:

The standard form is a way to simplify too long or too short numbers. Standard form uses powers of ten to contract numbers.

x × 10^n

Where;

x = decimal number between 1.0 - 10.0

n = power of 10

According to this question, a number already in standard form is given as 3.57 x 10^6.

To convert to its long form, we count forward the power of ten beginning from where the decimal is. In this case, we're counting 6 times Note that once the decimal is after 7, we start placing zero (0) instead. Based on this, we have;

3.57 x 10^6

1st count = 35.7

2nd count = 357

3rd count = 3570

4th count = 35700

5th count = 357000

6th count = 3570000

Hence, the long form of the number 3.57 x 10^6 is 3570000.

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