Acrow flies to a point that is 1 mile east and 20 miles south of its starting point. how far does the crow fly?

Crow flew 20.02 miles.

Step-by-step explanation:

A crow flies to a point in the east = 1 miles

Then it flies to a point in the south = 20 miles

Now we have to calculate the distance x between the crow and initial point.

Therefore, distance x =

[By Pythagoras theorem]

x =

  =

  =

  = 20.02 miles

Crow is 20.02 miles away.

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)