Answer:
The Answer is D.
Step-by-step explanation:
To solve this question we should use the process of elimination.
We can clearly see that the function f(x) increases as x increases so we can rule out options A and C.
Now we have to decide between B and D.
So the format for a quadratic function is 
The format for an exponential function is 
So let's try exponential first:
at x = 0 we solve for a and b:
so we find b when x =5
![12201.9 =10000b^5\\b^5=\frac{12201.9}{10000} \\b^5=1.22019\\b=\sqrt[5]{1.22019} \\](https://tex.z-dn.net/?f=12201.9%20%3D10000b%5E5%5C%5Cb%5E5%3D%5Cfrac%7B12201.9%7D%7B10000%7D%20%5C%5Cb%5E5%3D1.22019%5C%5Cb%3D%5Csqrt%5B5%5D%7B1.22019%7D%20%5C%5C)
b = 1.04060
Then we evaluate the value as x=10
![14888.64=10000b^10\\b^10=14888.64/10000\\b^10=1.488864\\b=\sqrt[10]{1.488864} \\b=1.04060](https://tex.z-dn.net/?f=14888.64%3D10000b%5E10%5C%5Cb%5E10%3D14888.64%2F10000%5C%5Cb%5E10%3D1.488864%5C%5Cb%3D%5Csqrt%5B10%5D%7B1.488864%7D%20%5C%5Cb%3D1.04060)
As can be seen from both cases b is the same. This is a key chareteristic of an exponential function. So the Answer is D.
First, you need to find how much money the tax was (98.90-92=6.9) Then, divide the tax by the price without the tax to find the tax rate (6.9/92=.075) then multiply the answer by 100 (.075*100=7.5)The tax rate is 7.5%
A. 1690.
You can get this answer by doing 13 to the power of 2 and then multiplying that answer by 10.
Answer:
x = 2
Step-by-step explanation:
Answer:
Letter b is correct!
explanation:
The letter b is correct because it is the demand determinants that explain the changes in the aggregate demand curve. This is because the most important determinants of demand such as interest rate, Federal Deficit, expectations and money supply are not constant, so a change in any of these determinants will also affect the change in the aggregate demand curve.
