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schepotkina [342]
3 years ago
5

What is the value of this expression?

Mathematics
2 answers:
OLEGan [10]3 years ago
4 0

Multiply the decimal numbers:

5.3 x 4.2 = 22.26

When multiplying scientific numbers, add the exponents together: 4+3 = 7

So you now have 22.26 x 10^7

Now you need to convert 22.26 to a scientific number, by only having one number to the left of the decimal point.

You need to move the decimal 1 place to the left, which means you need to add 1 more to the exponent.

The final answer would be 2.226 x 10^8

pantera1 [17]3 years ago
3 0

22.26 x 10^7 is the correct answer

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