Answer:
B
Step-by-step explanation:
There are essentially two kind of quantities, the scalar quantities and the vector quantities. While vector quantities are detailed and described according to their magnitude and directions, the scalar quantities are described in terms of their magnitude alone.
Hence we say that a scalar quantity possesses magnitude only but not direction. To adequately account for the average speed and the average velocities, we need to know the quantities that gave rise to them. While the average speed is measured by the total distance divided by the total time, the average velocity is measured by the division of the total displacement over the total time.
While average speed is a scalar quantity, average velocity is a vector quantity. Hence the speed is the same irrespective of the direction while the average velocity is different as we had a change in direction according to the question
![\huge\boxed{\boxed{\bold{1.5\ \bftext{km/min}}}\ \boxed{\bold{3\ \bftext{km}}}}](https://tex.z-dn.net/?f=%5Chuge%5Cboxed%7B%5Cboxed%7B%5Cbold%7B1.5%5C%20%5Cbftext%7Bkm%2Fmin%7D%7D%7D%5C%20%5Cboxed%7B%5Cbold%7B3%5C%20%5Cbftext%7Bkm%7D%7D%7D%7D)
![\hrulefill](https://tex.z-dn.net/?f=%5Chrulefill)
To convert from kilometers per hour to kilometers per minute, we simply divide by
as there are
minutes in an hour.
![\frac{90}{60}=\frac{90\div30}{60\div30}=\frac{3}{2}=\large\boxed{1.5}](https://tex.z-dn.net/?f=%5Cfrac%7B90%7D%7B60%7D%3D%5Cfrac%7B90%5Cdiv30%7D%7B60%5Cdiv30%7D%3D%5Cfrac%7B3%7D%7B2%7D%3D%5Clarge%5Cboxed%7B1.5%7D)
To find how far the car will travel in a certain time, just multiply the speed by the time.
![1.5\ \text{km/min}*2\ \text{min}](https://tex.z-dn.net/?f=1.5%5C%20%5Ctext%7Bkm%2Fmin%7D%2A2%5C%20%5Ctext%7Bmin%7D)
![\large\boxed{3\ \text{km}}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B3%5C%20%5Ctext%7Bkm%7D%7D)
Answer:
-18
Step-by-step explanation:
k ≥ −18
74.4. add all the numbers together and divide by how many there are (5)
2.059, 2.8, 2.59, 2.5962 I hope that helps!