6!/3! = 720/6 = 120................................
Each star has a 20% difference.
A four star rating would be above the bottom 60% ( 1, 2 and 3 stars) but be below the top 20%. (5 stars).
The second one. It cancels out one but leaves one coefficient left which you divide and get the answer of x=0
Answer:
1/30 or .00119 (Same answer, just in decimal form)
Step-by-step explanation:
The rule is y = 3^x
This is an exponential
If x = 1, then y = 3^x = 3^1 = 3
If x = 2, then y = 3^x = 3^2 = 3*3 = 9
If x = 3, then y = 3^x = 3^3 = 3*3*3 = 27
If x = 4, then y = 3^x = 3^4 = 3*3*3*3 = 81
If x = 5, then y = 3^x = 3^5 = 3*3*3*3*3 = 243
We can see this a number of ways. One is to graph and notice the points steeply increase as x gets larger. So that implies an exponential growth behavior.
Also notice how jumping from 3 to 9 to 27 and so on has us multiplying by 3. This geometric sequence property further confirms we have an exponential rule.
