First we must do 294 x 12 to find the total number of beds which is 3528 then we divide that by three which 1176 nurses total :)
Answer:
x=5 gg ez
Step-by-step explanation:
Answer:
-2; 16
Step-by-step explanation:
Rewrite the equation
as:
![x^2-14x+31-63=0\\ \\x^2-14x-32=0](https://tex.z-dn.net/?f=x%5E2-14x%2B31-63%3D0%5C%5C%20%5C%5Cx%5E2-14x-32%3D0)
Now use the quadratic formula:
![D=b^2-4ac\\ \\D=(-14)^2-4\cdot 1\cdot (-32)\ \ [a=1,\ b=-14,\ c=-32]\\ \\D=196+128=324=18^2](https://tex.z-dn.net/?f=D%3Db%5E2-4ac%5C%5C%20%5C%5CD%3D%28-14%29%5E2-4%5Ccdot%201%5Ccdot%20%28-32%29%5C%20%5C%20%5Ba%3D1%2C%5C%20b%3D-14%2C%5C%20c%3D-32%5D%5C%5C%20%5C%5CD%3D196%2B128%3D324%3D18%5E2)
Now
![x_{1,2}=\dfrac{-b\pm\sqrt{D}}{2a}\\ \\x_{1,2}=\dfrac{-(-14)\pm\sqrt{18^2}}{2\cdot 1}=\dfrac{14\pm18}{2}=\dfrac{-4}{2},\ \dfrac{32}{2}=-2,\ 16](https://tex.z-dn.net/?f=x_%7B1%2C2%7D%3D%5Cdfrac%7B-b%5Cpm%5Csqrt%7BD%7D%7D%7B2a%7D%5C%5C%20%5C%5Cx_%7B1%2C2%7D%3D%5Cdfrac%7B-%28-14%29%5Cpm%5Csqrt%7B18%5E2%7D%7D%7B2%5Ccdot%201%7D%3D%5Cdfrac%7B14%5Cpm18%7D%7B2%7D%3D%5Cdfrac%7B-4%7D%7B2%7D%2C%5C%20%5Cdfrac%7B32%7D%7B2%7D%3D-2%2C%5C%2016)
Use the compound interest formula: A=P(1+i)^t.
P is the initial amount of the drug, 0.3ml.
i is - 0.0035.
t is in seconds.
You'll get:
A=0.3(1-0.0035)^t.
Sub in any value on t to find out how many ml are left t seconds after injection.
The 0.65 second injection time does not seem to be relevant as the question clearly states that the exponential decay starts AFTER the injection is completed.