Hope u can read it sorry

ans b is the correct answer because

first we should have to multiply 1.4×10 power 6 which means 14000000 km

then we should divide with mars diameter which is 7000 km

14000000/7000km= 2× 10 power 3

2× 10 power 3

2×1000

therefore 2000 km is the ans

hope you understand

plz give me brainliest+ thanks. i need to reach in expert. : )

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

i think asking google will you get the answer to that question