Answer:
20%
Step-by-step explanation:
2.5 min =(60×2.5)sec=150 sec
30sec to 150sec=30×100/150=20%
Yeah because both share a point ,B
The length of the segment ac is 10.3 cm
<h3>How to determine the length ac?</h3>
The segments are given s:
ab = 7.8cm
bc = 25mm
Point b is located between points a and c.
So, we have:
ac = ab + bc
Substitute known values
ac = 7.8cm + 25mm
Express mm a cm
ac = 7.8cm + 2.5cm
Evaluate the sum
ac = 10.3 cm
If the point b lies on segment ac, then there can be only one solution
Read more about line segment at:
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Answer:
Step-by-step explanation:
a) Standard deviation of 10 mean the fluctuation for values range from +10 to -10 from the mean.
b) Since the sixth student is 50 minutes, which is higher than the mean of 45 minutes, this will bring the over all mean higher that 45 minutes. Also, since 50 falls within the standard deviation range (35 to 55), this mean the new standard deviation will be smaller than 10.
