X2 - 2x + 9x - 18
X2 + 7x - 18
Answer:
someone is adding dont worrie
Step-by-step explanation:
Answer:
18,0
Step-by-step explanation:
By useing desmos, the line has an x intercept of 18 making that the answer.
Answer:
7.6m/s
Step-by-step explanation:
Find the time the Olympian swam
Speed=distance/time ⇒⇒Time=distance/speed
Distance=200m , speed= 1.8m/s t= 200/1.8 = 111.11 seconds
Find the speed of the Olympic runner
Distance=200m time = 21.3 sec
s=200/21.3 = 9.4 m/s
Difference in speed= 9.4-1.8= 7.6m/s