Question

Answer for B and C please!

Answer 1

Answer:

2440 km; 1.330 × 10²⁷ kg  

Step-by-step explanation:

(a) Radius of Mercury

D = 4.88 × 10^³ km

D = 2r     Divide each side by 2

r = D/2  

r = (4.88 × 10³)/2

r = 2.44 × 10³ km     Convert to decimal notation

r = 2440 km

(c) Mass difference

Difference = 1.898 × 10²⁷ - 5.68   × 10²⁶     Rationalize exponents

Difference = 1.898 × 10²⁷ - 0.568 × 10²⁷

Difference = 1.330 × 10²⁷ kg