Answer:
c. w = -1
Step-by-step explanation:
you have to add 2 with -3 and you get -1.
This is exponential decay which can be expressed as:
y=ab^t, y=final value, a=initial value, b=rate, t=time
In this case a=25000, r=(100-20)/100=0.8 so
y=25000(0.8^t), so in 4.5 years...
y=25000(0.8^4.5)
y≈$9158.93 (to nearest cent)
32.5 is the correct answer
Answer:
-3x^2+6x-157
Step-by-step explanation: