The mass of Mars is 6.42x10-23 kilograms. The mass of mercury is 3.3x10-23 kilograms. What is the combined mass in scientific notation.

. Let J be the mass of Jupiter and this may be expressed as,

              J = (5.8 x 10^3)(3.3 x 10^23)

The answer to the operation above is 1.914 x 10^27. In correct scientific notation, the answer would be 1.91 x 10^27 kg.

2. The same as what had been done in the previous number, let E be the mass of Earth.

                1.91 x 10^27 = (3.2 x 10^2) x E

The value of E is equal to 5.97 x 10^24. In correct scientific notation, the answer would be 6.0 x 10^24 kg. Step-by-step explanation:

.632

step-by-step explanation:

6 * 1/10 = 3/5

3*0.01 = 0.03

3/5 + 0.03 = .63

2*0.002 = .002

.63 + 0.002 = .632