Answer:
Perimeter is 72 mm
Step-by-step explanation:
Regular Hexagon - 6 equal sides
12 x 6= 72
So, perimeter is 72mm
Hope this helps!
850/550= 1.7
it will take 1.7 hours or 1 hour and 42 minutes
add this to 11:30 AM
11:30+01:42= 1:12
then subtract the hour
13:12-1:00= 12:12
so it will be 12:12 when the plane lands in chicago
Answer:
She has lived
.
Step-by-step explanation:
Given : Sara has lived 18.0 years.
To find : How many seconds has she lived?
Solution :
Using conversions,
1 year = 365.24 days
1 day = 24 hours
1 hour = 60 minutes
1 minute = 60 seconds
Converting 18 years into seconds,
![18 \text{years} = 18\times 365.24\times 24\times 60\times 60\ \text{seconds}](https://tex.z-dn.net/?f=18%20%5Ctext%7Byears%7D%20%3D%2018%5Ctimes%20365.24%5Ctimes%2024%5Ctimes%2060%5Ctimes%2060%5C%20%5Ctext%7Bseconds%7D)
![18 \text{years} =568021248\ \text{seconds}](https://tex.z-dn.net/?f=18%20%5Ctext%7Byears%7D%20%3D568021248%5C%20%5Ctext%7Bseconds%7D)
In scientific notation,
![18 \text{years} =5.68021248\times 10^8\ \text{seconds}](https://tex.z-dn.net/?f=18%20%5Ctext%7Byears%7D%20%3D5.68021248%5Ctimes%2010%5E8%5C%20%5Ctext%7Bseconds%7D)
Therefore, she has lived
.
it is -19.1 if you do the math -12.3- -6.8=-19.1