I’m pretty sure This rounds to 900
Answer:
His average speed was of 10.42 m/s
Step-by-step explanation:
We use the following relation to solve this question:

In which v is the velocity(in m/s), d is the distance(in meters), and t is the time, in seconds.
Usain Bolt of Jamaica set a world record in 2009 for the 200- meter dash with a time of 19.19 seconds.
This means that 
So his average speed was of:

His average speed was of 10.42 m/s
Answer:
k squared minus 4/ A
Step-by-step explanation:
took the test
Answer:
x = 9.
Step-by-step explanation:
-5 square root x =15
divide both sides by -5:
√x = 15/-5 = -3
Squaring both sides:
x = 9.
Just combine like terms: all of the x^2 together, all of the x's together and all of the numbers:
3x2+5x2+5x-2-1
8x2+5x-3 simplified, so letter A