Answer:
4hours
Step-by-step explanation:
1hour =85+85
=170km/h
time= distance÷
speed=170km/h
680÷170=time
=4h
You can use the discriminant rule, which is :
b^2 -4ac
“exactly one solution” means that it is equal to zero
so:
b^2 -4(4)(9)=0
b^2 -4(36)=0
b^2 -144=0
b^2=144
square root both sides
b=12 or -12
hope this helps !
Elsa is going to buy a truck so she can give down to the good old bar to drink her painful sadness away so that later she'll feel happy enough to take the barrel of gun and put it in her mouth and just starts deepthoarting
Answer:There are 4200 bacteria in a lab dish. The population decreases 8%per day. How many bacteria are there after day 1? Round to nearest whole number
Step-by-step explanation:
