Answer:
Step-by-step explanation:
The conjugate of a radical expression is obtained by changing the sign of the middle term.
The conjugate of is simply
Therefore, to obtain the conjugate of the given expression we simply shall be changing the negative sign to positive;
The conjugate of is simply;
It is going down by 5 so its like x-5 i believe
D. 62.5 is the answer
Explaination:
Answer:
600m
Step-by-step explanation:
speed = distance/time
*re-arrange to find distance
distance = speed x time
*substitute
distance = 30m/s x 20seconds
distance = 600metres