Answer: f(x)=200•(0.85)^x
Step-by-step explanation:
C(t) is the actual value of the function at time t
Co is the initial value of C at t=0
r is the decaying rate, expressed in decimal
Depreciation is often modeled as an exponential decay function. Since Jim bought a skateboard for Co=$200, its value will depreciate by r=15% = 0.15 each year since buying it.
Answer:
width = 8 feet and length = 29 feet
Step-by-step explanation:
perimeter of a rectangle P = 2(L + W)
width W = x
length L = 3x + 5
P = 74 feet
74 = 2(3x + 5 + x)
37 = 3x + 5 + x
37 = 4x + 5
4x = 37 -5
4x = 32
x = 8
W = 8 feet
It would be a 12% decrease. 0.88 is 88% (multiply by 100 to find the percentage) of the original price (x, which is 100%). as an example, say x=1000.
0.88(1000)=880
880 is 88% of 1000, but the original price did not decrease by 88%/$880. Instead subtract this percentage from 100.
100%-88%=12%
there, you find the percentage lost/the percentage of the value decrease.
Answer:
e
Step-by-step explanation:
2.16/3=72c
1 to 3 inches per week, is essentially, 1inch / 3weeks, which I believe is all you need to know.
