Show that the points (20°N,20°E) and (60°N,160°W) lie on the same great circle. find their great-circle distance apart.

sorry not sure

step-by-step explanation:

the number of possible outcomes that do not show a 1 on the first spinner and show the number 4 on the second spinner is 2.

spinner 1 spinner 2

1                     1

1                     2

1                     3

1                     4

2                   1

2                   2

2                   3

2                   4   = not 1, and 4

3                   1

3                   2

3                   3

3                   4 = not 1, and 4

only 2 outcomes have passed the given condition.

step-by-step explanation:

i saw this question before, dont know the asnwer srry

step-by-step explanation: