The train traveled 60 miles per hour since 360 miles divided by 6 hours gives you 60 mph
Answer:
C. <em>x</em> is all real numbers.
Step-by-step explanation:
Since the domain is likely infinite, then the domain must be all real numbers so <em>x</em> is all real numbers.
Divide -8 from both sides to get the answer
Answer:
the first step should be of subtracting 15 from 7
In this question we need to use the compound interest formula, which is
![A= P(1+r)^n](https://tex.z-dn.net/?f=%20A%3D%20P%281%2Br%29%5En%20)
A represents the amount after n years and P is the principal.
And in this question, P = 2000, n =10 years, r is unknown and A = 3600.
Substituting these values in the formula
![3600 = 2000(1+r)^{10}](https://tex.z-dn.net/?f=%203600%20%3D%202000%281%2Br%29%5E%7B10%7D%20)
![\frac{9}{5} = (1+r)^{10}](https://tex.z-dn.net/?f=%20%5Cfrac%7B9%7D%7B5%7D%20%3D%20%281%2Br%29%5E%7B10%7D%20)
![1+r = ( \frac{9}{5})^{1/10}](https://tex.z-dn.net/?f=%201%2Br%20%3D%20%28%20%5Cfrac%7B9%7D%7B5%7D%29%5E%7B1%2F10%7D%20)
1+r = 1.06054
r=0.06054 or approx 6%