Question

A spaceship in a star trek goes at the rate of 4.2 x 10 km/hr. Express the time it will take to cover 3360 km, in the
scientific notation.​

Answer 1

Answer:

(GIVEN):- speed (v)= 4.2 * 10 km/hr ,and,

distance (s) = 3360 km.

so,

time (t) = distance (s)/speed (v)

time (t) = 3360/42

(NOTE:- 4.2 × 10 = 42.0 = 42)

time (t) = 80 sec/second.

Answer 2

Step-by-step explanation:

(GIVEN):- speed (v)= 4.2 * 10 km/hr ,and,

distance (s) = 3360 km.

so,

time (t) = distance (s)/speed (v)

time (t) = 3360/42

(NOTE:- 4.2 × 10 = 42.0 = 42)

time (t) = 80 sec/second.

pls mark brainleist