The <span>cubic model that best fits this data is </span><span>y = 0.0000872x^3 - 0.00989x^2 + 0.403x + 1.192</span>
Answer: 3∛2
<u>Step-by-step explanation:</u>
First, factor 128 .... you need three common factors to bring one on the outside of the radical.
![\dfrac{3}{4}\sqrt[3]{128} \\\\\\=\dfrac{3}{4}\sqrt[3]{4\cdot 4\cdot 4\cdot 2} \\\\\\=\dfrac{3}{4}\cdot 4\sqrt[3]{2} \\\\\\=\large\boxed{3\sqrt[3]{2} }](https://tex.z-dn.net/?f=%5Cdfrac%7B3%7D%7B4%7D%5Csqrt%5B3%5D%7B128%7D%20%5C%5C%5C%5C%5C%5C%3D%5Cdfrac%7B3%7D%7B4%7D%5Csqrt%5B3%5D%7B4%5Ccdot%204%5Ccdot%204%5Ccdot%202%7D%20%5C%5C%5C%5C%5C%5C%3D%5Cdfrac%7B3%7D%7B4%7D%5Ccdot%204%5Csqrt%5B3%5D%7B2%7D%20%5C%5C%5C%5C%5C%5C%3D%5Clarge%5Cboxed%7B3%5Csqrt%5B3%5D%7B2%7D%20%7D)
Answer:
search "Fraction Calculator" for quick mafs
Step-by-step explanation:
A ≈ 78.46 ft
To find the answer just look up the formula for finding area with circumference and plug in the circumference
y = 70000(0.5)^(x/4), where x equals the number of hours.
(Attached is an image with the equation properly formatted.)
The function for exponential decay is <em>y = a(1 - b)^x</em>, where y is the final amount, a is the starting amount, b is the decay percentage in decimal form.
So, just fill in the values.
y = 70000(1 - 0.5)^x
y = 70000(0.5)^x
In this case however, x represents the number of sets of four hours, so we should probably divide x by 4 to make x represent the number of hours.
y = 70000(0.5)^(x-4)