Answer:
f(7)=10-14=-4
Answer=-4
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
We can use the standard form of an exponential function:
![y=a(b)^x](https://tex.z-dn.net/?f=y%3Da%28b%29%5Ex)
The point (0, 18) tells us that <em>y</em> = 18 when <em>x</em> = 0. Hence:
![\displaystyle 18=a(b)^0](https://tex.z-dn.net/?f=%5Cdisplaystyle%2018%3Da%28b%29%5E0)
Simplify:
![a=18](https://tex.z-dn.net/?f=a%3D18)
Our equation is now:
![\displaystyle y=18(b)^x](https://tex.z-dn.net/?f=%5Cdisplaystyle%20y%3D18%28b%29%5Ex)
Next, the point (-1, 15) tells us that <em>y</em> = 15 when <em>x</em> = -1. Hence:
![15=18(b)^{-1}](https://tex.z-dn.net/?f=15%3D18%28b%29%5E%7B-1%7D)
Isolate the variable:
![\displaystyle \frac{1}{b}=\frac{5}{6}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cfrac%7B1%7D%7Bb%7D%3D%5Cfrac%7B5%7D%7B6%7D)
Hence:
![\displaystyle b=\frac{6}{5}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20b%3D%5Cfrac%7B6%7D%7B5%7D)
By substitution:
![\displaystyle y=18\left(\frac{6}{5}\right)^x](https://tex.z-dn.net/?f=%5Cdisplaystyle%20y%3D18%5Cleft%28%5Cfrac%7B6%7D%7B5%7D%5Cright%29%5Ex)
Our answer is B.
Answer:
factors of 125 are:
1, 5, 25, 125
I'm not sure what u mean..... if you want to find hcf of a value then there has to be two value example: hcf of 125 and 225
Answer:
72.57 kg
Step-by-step explanation:
1 lbs = 0.45359237 kg
160 lbs = 160 * 0.45359237 kg = 72.5747792 kg
72.5747792 kg round to the nearest hundredths is 72.57 kg