Answer! urgent!
for trial 1, hannah closes her eyes while arianna gently touches 2 paperclip points 3 millimeters (mm) apart on hannah's forehead. then hannah reports whether she could feel 1 or 2 points. for each of the next trials, arianna and hannah repeat this process, each time with the points 2 more mm apart. hannah reports feeling 1 point until the points are 15 mm apart, when she begins reporting that she feels 2 points. which inequality best represents the trial numbers in which hannah feels 2 points?

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

d is the only accurate one

step-by-step explanation:

answer: 1.06 km per sec

step-by-step explanation:

39.6 m=63.72 km

60 min in an hour so 63.72/60=1.06