420x.06=25.20
Sales Tax will be 25.20
The quadcopter's average velocity is given in terms of change in position by
where 
, the difference in the quadcopter's final and initial positions and 
.
The 
-component of the average velocity is 2.70 m/s, so
and the 
-component is -2.50 m/s, so
4 A) 1/6
4 B) 1/45
4 C) 2/3
4 D) 3/5
Answer:
The maximum temperature will be -10°C, then if T represents the temperature, we can write this as:
T ≤ -10°C
And the minimum temperature will be -25°C, then we must have that:
T ≥ -25°C
if we use both conditions, we will have:
-25°C ≤ T ≤ -10°C
We can write this range:
[-25°C, -10°C]
Where the [] symbols mean that the extremes are possible temperatures.
The length of the range will be:
-10°C - 25°C = 15°C.
4 3/4 =19/4=57/12
57/12 is larger than 38/12
