PART A)The mass of earth is 5.97x10^24 kilograms. The mass of the Moon is 7.34x10^22 kilograms.
What is the combined mass of earth and the moon? In scientific notation

PART B) About how many times as great is the mass of earth than the mass of the moon? In scientific notation

A) When adding numbers in scientific notation, we must be careful of the exponents.

The Moon's mass can be rewritten as .0734 x 10^24 kg

Now we add the Mass of the Earth: 5.97 x 10^24 kg

and that equals 6.0434  x 10^24 kg

HOWEVER, not all those figures are significant and we have to adjust that combined mass to 6.04 x 10^24 kg.

B) Mass Earth / Mass Moon = 5.97 x 10^24 kg / 7.34 x 10^22 kg =

81.3351498638

So, the Earth is about 81 times more massive than the Moon.

Step-by-step explanation:

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

for future students the answer is b

hope i

-lavira: )