add 1.082 x 10^8 2.279 x 10^8

3.361 x 10^8

Explain

To add two numbers in scientific notation, we first need to make sure that the exponents are the same. In this case, both numbers have an exponent of 8.

Next, we add the coefficient values together, which are 1.082 and 2.279. The sum of these numbers is 3.361.

Finally, we keep the exponent of 8 and write the sum in scientific notation as 3.361 x 10^8.

Subtract 7.786 x 10^8

To subtract a number in scientific notation, we follow a similar process as when subtracting regular numbers.

In this case, the number that you want to subtract is 7.786 x 10^8.

To subtract this from an existing number, you need to first ensure that the exponents are the same. If the exponents are different, you can convert the number with the higher exponent to match the exponent of the number you want to subtract.

Once the exponents are the same, you subtract the coefficients. If the number you want to subtract is larger than the existing number, you will end up with a negative value.

However, since you did not provide the existing number, I cannot perform the actual subtraction. Could you please provide the existing number so I can assist you further?

With 1.4335 x 10^9

To subtract 7.786 x 10^8 from 1.4335 x 10^9, we first need to make sure that the exponents are the same. In this case, both numbers have an exponent of 9.

Next, we subtract the coefficient values.

1.4335 - 0.7786 = 0.6549

Finally, we keep the exponent of 9 and write the difference in scientific notation as 0.6549 x 10^9.

multiply 2.8725 x 10^9 with 5.79 x 10^7

To multiply two numbers in scientific notation, we can multiply the coefficients and add the exponents.

In this case, we have:
(2.8725 * 5.79) * (10^9 * 10^7)

Multiplying the coefficients:
2.8725 * 5.79 = 16.642175

Adding the exponents:
10^9 * 10^7 = 10^(9+7) = 10^16

Putting it all together, the product is:
16.642175 * 10^16, which is equivalent to 1.6642175 x 10^17.