Answer:
no real answer
Step-by-step explanation:
distribute the -4 and combine all of the like terms on the left side = r-8-4r, then -8-3r
then we have 7-3r=-8-3r
from here, we can already tell that there's no real answer. this is because the two -3r will cancel, leaving no variable.
since 7 doesn't equal -8, there is no answer.
if, for example, the value on both sides of the equal sign were the same after the variable was eliminated, then your answer would be all real numbers
D is the answer for equivalent
72% = 72/100
72/100=36/50=18/25
Hope this helps helps with the answer to your question ;)
Answer: Exponential function: ![y=12000(1.05)^x](https://tex.z-dn.net/?f=y%3D12000%281.05%29%5Ex)
Step-by-step explanation:
Exponential function:
, a = initial value , x= time, b= growth factor , b= 1+r , where r=rate of growth.
Given: Initial population = a= 12,000,
rate of growth = r= 5% = 0.05
Then, b= 1+r= 1+ 0.05 = 1.05
Substitute value of a and b in (i), we get
![y=12000(1.05)^x](https://tex.z-dn.net/?f=y%3D12000%281.05%29%5Ex)
Hence, The required exponential function:
, where x= time.