<span>90 m/s; it represents the average speed of the object between 2 seconds and 4 seconds, and here's why:
the main formula is v= D / Dt, D=Dfinal - Dinitial
Dt= tfinal - tinitial
so between t=2 and t= 4, V = 240-60/ 4-2= 90m/s
</span>
Answer:
The range and domain of this function is [-2, 2]
Step-by-step explanation:
For the domain it must be fulfilled that . Then, . This expression is true for the values of that make the factors simultaneously non-negative or non-positive.
Case non-negative factors
implies that , that is
implies that , that is, . The intersection of the previous sets is [-2, 2].
Case non positive factors
implies that , that is
implies that , that is, . The intersection of the previous sets is empty.
Then the domain of the function is [-2, 2]
The range of this function is the domain of its inverse. The inverse of the function is itself, so the range is [-2, 2]
20.71 * 20.71 = 429
Your answer is 20.71
If you want more than it is 20.71231517