D because d is always right hahahahaha
-9-6+12h+40=22
12h+25=22
12h=-23
h=-23/12
Answer:
Based on this information the population in 2019 is <u>23,395</u>. This is because 4.18% of 11,211 is 468.62, times 26(amount of years) is 12,184. After that you would just add the original population(11,211).
Step-by-step explanation:
The exponential function which represented by the values in the table is
⇒ 3rd answer
Step-by-step explanation:
The form of the exponential function is
, where
- a is the initial value (when x = 0)
- b is the growth/decay factor
- If k > 1, then it is a growth factor
- If 0 < k < 1, then it is a decay factor
The table:
→ x : f(x)
→ -2 : 16
→ -1 : 8
→ 0 : 4
→ 1 : 2
→ 2 : 1
∵ ![f(x)=a(b)^{x}](https://tex.z-dn.net/?f=f%28x%29%3Da%28b%29%5E%7Bx%7D)
- To find the exponential function substitute the value of x and f(x)
by some values from the table to find a and b, at first use the
point (0 , 4) to find the value of a
∵ x = 0 and f(x) = 4
∴ ![4=a(b)^{0}](https://tex.z-dn.net/?f=4%3Da%28b%29%5E%7B0%7D)
- Remember that any number to the power of zero equal 1
except the zero
∵ ![b^{0}=1](https://tex.z-dn.net/?f=b%5E%7B0%7D%3D1)
∴ 4 = a(1)
∴ a = 4
Substitute the value of a in the equation
∴ ![f(x)=4(b)^{x}](https://tex.z-dn.net/?f=f%28x%29%3D4%28b%29%5E%7Bx%7D)
- Chose any other point fro the table to find b, lets take (1 , 2)
∵ x = 1 and f(x) = 2
∴ ![2=4(b)^{1}](https://tex.z-dn.net/?f=2%3D4%28b%29%5E%7B1%7D)
∴ 2 = 4 b
- Divide both sides by 4
∴ ![b=\frac{2}{4}=\frac{1}{2}](https://tex.z-dn.net/?f=b%3D%5Cfrac%7B2%7D%7B4%7D%3D%5Cfrac%7B1%7D%7B2%7D)
- Substitute the value of b in the equation
∴ ![f(x)=4(\frac{1}{2})^{x}](https://tex.z-dn.net/?f=f%28x%29%3D4%28%5Cfrac%7B1%7D%7B2%7D%29%5E%7Bx%7D)
The exponential function which represented by the values in the table is ![f(x)=4(\frac{1}{2})^{x}](https://tex.z-dn.net/?f=f%28x%29%3D4%28%5Cfrac%7B1%7D%7B2%7D%29%5E%7Bx%7D)
Learn more:
You can learn more about the logarithmic functions in brainly.com/question/11921476
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