Complete question
To find 
, Beau found 
and 
. He said that since 5 is between 4 and 9, , is between 2 and 3. Beau thinks a good estimate for , is 
Is his estimate high or low? How do you know?
Answer:
The estimation is high because 5 is very close to 4 so will also be very close to 
which is lower than the estimate
In order to get a good estimate
The first step is to choose a number between 2 and 3 let say 2.8 , 2,85 , 2.9 and the square them
i.e
From here we can see that lies between 2.2 and 2.3 but is closer to 2.2
So a good estimate for is 2.2
Step-by-step explanation:
Answer: speed v= s/t = (460 / 5,75 )km/h
Step-by-step explanation: s= 460 km, t= 5h 45 min = 5,75 h
Rationalize.
This can be further simplified to the decimal:
-0.43006...
I hope this helps :)
Answer:
2 hours 40 minutes
Step-by-step explanation:
If you add 3 hours, it will be 7:45
You subtract 20 minutes to get to 7:25
3 hours - 20 minutes = 2 hours 40 minutes
