Answer:
B
Step-by-step explanation:
Plug the values of x into each equation
(12,756 kilometers) - (4,879 kilometers) = 7,877 kilometers
Healthcare workers use it often to Treat diseases
Work:
First department: (They have 9 possibilities for delegate and 8 for alternate)
9 * 8 = 72
Second department: (They have 7 possibilities for delegate and 6 for alternate)
7 * 6 = 42
Third department: (They have 10 possibilities for delegate and 9 for alternate)
10 * 9 = 90
Total possibilities:
72 * 42 * 90 = 272,160 possibilities
I hope this helps!
S1 = 72
S2 = 12 = 72*(1/6)
S3 = 2 = 72*(1/6)^2
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S15 = 72*(1/6)^14 = 9.18*10^(-10)