6.05 Combinations and Permutations
1. A medical researcher needs 6 people to test
the effectiveness of an experimental drug. If
13 people have volunteered for the test, in
how many ways can 6 people be selected?

yes yes yes yes yes yes yes yes yes

answer: do we write it

step-by-step explanation:

answer would be 8.64 or s = 11π/4 inches

step-by-step explanation:

s = r θ  

where s = arc length  

r = radius = 3 inches  

θ = central angle in radians = ( π /180)*165  

s = 3(π/180)*165  

= 8.64 inches

a.for lorena 14 hours makes $126   for 16 hours she makes 144

for julie 6 hours makes $72 for 21 hours its $252

b. julie makes more money than lorena julie makes $12 an hour and lorena makes $9  

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