5.79 × 10v7 - 4.4951 × 10v9 show your work

Answer 1

To perform the subtraction of these numbers expressed in scientific notation, we need to make sure that the exponents are the same. In this case, the exponent for both numbers is a positive number (7 and 9), so we need to adjust the second number to match the exponent of the first number.

Starting with 5.79 × 10^7, we can adjust the exponent of 10^7 to 10^9 by multiplying the decimal part by (10^(9-7)) which is 10^2.

5.79 × 10^7 = 5.79 × 10^(7+2) = 5.79 × 10^9 (adjusted first number)

Now, let's subtract the adjusted first number from the second number:

5.79 × 10^9 - 4.4951 × 10^9

To subtract these numbers, we only have to subtract their coefficient parts since the exponents are the same (10^9).

5.79 - 4.4951 = 1.2949

Therefore, the subtraction of 5.79 × 10^7 - 4.4951 × 10^9 is:

1.2949 × 10^9