Which of the following statements about f(x) is true?

Question

anonymous · Answer

attachment

johnweldon1993 · Answer

We need the conditions :)

anonymous · Answer

The graph is of e^x +1. What are the statements?

primeralph · Answer

@kutabs  don't be so conclusive..........it can be     anything^ anything +1

anonymous · Answer

nvm that question i got it i have a new one

anonymous · Answer

The size of the rainforest in El Salvador is currently decreasing at a rate of 30% per year. The amount of rainforest in El Salvador t years from now is given by the equation F = F0(1 + r)t, where F is the the amount of rainforest remaining t years from now, F0 is the current amount of rainforest, and r is the rate at which the rainforest is changing.

If there are currently 170,000 square miles of rainforest in El Salvador, about how many square miles of rainforest will there be in 2 years?

johnweldon1993 · Answer

I believe actually since this is exponential DECAY that should be

$$F = Fo (1-r)^t$$

you have Fo...= 170000
You have r...= .30
You have t...= 2 years

So plug all those in and what do you get?

anonymous · Answer

83300?

johnweldon1993 · Answer

That is what I got!

anonymous · Answer

yay thank you! could you help me some more?

johnweldon1993 · Answer

If I'm able to... sure

anonymous · Answer

The size of the rainforest in El Salvador is currently decreasing at a rate of 60% per year. The amount of rainforest in El Salvador t years from now is given by the equation F = F0(1 + r)t, where F is the the amount of rainforest remaining t years from now, F0 is the current amount of rainforest, and r is the rate at which the rainforest is changing.

If there are currently 290,000 square miles of rainforest in El Salvador, about how many square miles of rainforest will there be in 4 years?

johnweldon1993 · Answer

Same exact thing right?

F = Fo(1-r)^t

just replace your 'Fo' from before...with 290000.....replace your 't' from before...with 4 now......and replace your 'r' from before...with .60

anonymous · Answer

7424?

johnweldon1993 · Answer

correct again!

anonymous · Answer

my choices are 226,000
	B. 	 7,000
	C. 	 17,000
	D. 	 283,000

anonymous · Answer

so then would i just go with 7000?

johnweldon1993 · Answer

well since the question does say "ABOUT" yeah I'd go with 7000