Answer:
see below
Step-by-step explanation:
No simplification is possible as there aren't any factors that can be combined or cancelled. The exponents can be made positive by moving the variable to the other side of the fraction bar.
The applicable rule of exponents is ...
a^-b = 1/a^b
Answer:
The speed of the object at time, t=4 is
Step-by-step explanation:
The speed is calculated using the formula;
The distance covered by the object is given in terms of t, as
At time t=4, the distance covered by the object is;
The speed can now be calculated by substituting t=4 and distance 80 meters to obtain;