A) time = distance/speed
For the first half of the trip, the time used was
.. (1 mi)/(12 mi/h) = (1/12) h = 5 minutes
Then the last half of the trip took 10 minutes, 1/6 hour.
.. speed = distance/time
.. = (1 mi)/(1/6 h) = 6 mi/h
The speed for the last half of the trip was 6 mph.
b) The average speed was
.. (2 mi)/(1/4 h) = 8 mi/h
Ling's average speed was 8 mph.
One thousand seventy two point thirty nine thousandths.
Step-by-step explanation: do fast
when you will upload the picture do fast
Answer:
Brainliest if correct!
Step-by-step explanation:
6561
9^4
the first one!!!
Answer:
Step-by-step explanation:
We have to use absolute value notation to express the given statement.
Absolute value function:
- It is a function that contains absolute value symbol.
![|x| = x, ~x > 0\\~~~~=-x, ~x < 0](https://tex.z-dn.net/?f=%7Cx%7C%20%3D%20x%2C%20~x%20%3E%200%5C%5C~~~~%3D-x%2C%20~x%20%3C%200)
is used to express the distance between two points a and b on a number line.
We want to write a absolute value function for all numbers x whose distance from 6 is no more than 7.5 units.
Thus, we can write:
![|x-6| \leq 7.5](https://tex.z-dn.net/?f=%7Cx-6%7C%20%5Cleq%207.5)
This can be interpreted as the absolute value of difference between x and 6(both in positive sense and negative sense) is less than equal to 7.5 that is not more than 7.5 units.