It means t is less than or equal to -4 so it could be -4 or below. Any other questions? :)
5/5 because 7/8-2/3 equals 5/5 what you are doing you are taking away you take away 2 from the 7 and take away 3 from the 8 so there is your anwser 5/5 hope this helped! :D
The answer should be D because all the side remain the same as they increase. each side is increased by times 2.
Answer:
both or neither as they are the same distance to rescue her
total distance is her 13 plus 12 headed west and 5 headed south so 30
Step-by-step explanation:
Answer:
20ln(3)
Step-by-step explanation:
Put 15 for A and solve for t.
15 = 45e^(-.05t)
15/45 = 1/3 = e^(-.05t) . . . . divide by 45
ln(1/3) = -.05t . . . . . . . . . . . take natural logs
20ln(3) = t . . . . . . . . . . . . . . multiply by 20, simplify
It will take 20·ln(3) years for the area to decrease to 15 km^2.
