The correct justification is to multiply each side by -3 where W= -18
There are 109 pairs. Hoped this helps:)!
The mean of their scores is their sum divided by the number of scores.
.. (84 +67 +74 +87 +67 +73)/6 = 452/6 ≈ 75.3
Well there is no number underlined but looking at the answer choices I can see that the underlined digit is the 9. the 9 is in the hundredths place indicating that the value of the 9 is 9 hundredths.
We would be talking about velocity.
Scalar refers to a speed, but not a given direction.
For me, the easiest way to distinguish a scalar from velocity is to think about the mechanism of scales. A scale can go up and down, left and right, but it doesn't give a specific direction. In a Cartesian plane, the scale of (-4, 0) has the same scale as (4, 0) from the origin at (0, 0) because scale doesn't define a specific directional change in the same way magnitude doesn't have a specific direction.
Velocity, on the other hand, requires a direction because it is defined as the rate of change of an object from its initial position to its final position. In this instance, a direction is required as we need to define an object's acceleration or deceleration.
