<span>Which of the following equals 140 to nearest 10
A.134
B.145
C.136
D.146</span>
F - Irrational, -13.8
Because the negative sign is not inside of the radical, we can tell that the number is being multiplied by the negative. Thus, do the radical equation first, get the answer 13.8202... and multiply by -1 to get the answer. Also, it is irrational because it is not a perfect square.
Answer:
the answer is B. as you can see from the graph Mitchell spent about 8.00 in an hour so he spent more
Answer:
The exponential model is
.
Step-by-step explanation:
The exponential model can be modelled by the following mathematical expression:
(1)
Where:
- Independent variable.
- Dependent variable.
- Coefficients.
If we know that
and
, then we get the following system of equations:
(2)
(3)
If we divide (3) by (2), we calculate the value of
:
![e^{B}=\frac{25}{12}](https://tex.z-dn.net/?f=e%5E%7BB%7D%3D%5Cfrac%7B25%7D%7B12%7D)
![B = \ln \frac{25}{12}](https://tex.z-dn.net/?f=B%20%3D%20%5Cln%20%5Cfrac%7B25%7D%7B12%7D)
![B \approx 0.734](https://tex.z-dn.net/?f=B%20%5Capprox%200.734)
And by (2), we determine the value of
:
![A = 12\cdot e^{-7\cdot B}](https://tex.z-dn.net/?f=A%20%3D%2012%5Ccdot%20e%5E%7B-7%5Ccdot%20B%7D)
![A = 0.0704](https://tex.z-dn.net/?f=A%20%3D%200.0704)
The exponential model is
.