84? I think that that is correct. 108 chairs - 24 brown chairs = 84 blue chairs
Answer:
An exponential function in the form y=9(4ˣ)
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that exponential function
y = a bˣ ...(i)
The equation (i) passes through the point (0,9)
9 = a (b )⁰ = a
a =9
<u><em>Step(ii):-</em></u>
The equation (i) passes through the point (3,576)
576 = 9(b)³
⇒ 
⇒ 64 = b³
⇒ 4³ = b³
b = 4
<u><em>Final answer:-</em></u>
An exponential function in the form y=abˣ
An exponential function in the form y=9(4ˣ)
<u><em></em></u>
<u><em> </em></u>
By using the <em>compound interest</em> model, the initial deposit required to receive $ 5 000 every 6 months is $ 125 000.
<h3>How many money should be deposited in the beginning to receive a certain amount periodically</h3>
In this problem we must apply the <em>compound interest</em> model, which represent a <em>periodic</em> accumulation of interest according to the following formula:
C' = C · (1 + r/100)ˣ (1)
Where:
- C - Initial deposit
- r - Interest rate
- C' - Resulting money
- x - Period index
If we know that x = 1, r = 4, C = x and C' = x + 5 000, then the initial deposit is:
x + 5 000 = x · (1 + 4/100)
x + 5 000 = 1.04 · x
0.04 · x = 5 000
x = 125 000
By using the <em>compound interest</em> model, the initial deposit required to receive $ 5 000 every 6 months is $ 125 000.
To learn more on compound interest: brainly.com/question/14295570
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y in this case is a <u>constant</u>. The the derivative is nil, as y=e^(-1) is a straight horizontal line.
