Answer 29
5+6=11
11•4=44
44-15=29
50% of 600 is 300, so if there was an increase so its 900
Answer:
Half of the total cost was paid when her braces were put on. The total cost is $3,200. How much will Kelly's parents need to save each month to pay off the ..
Step-by-step explanation:
Answer:
![f(-1) = \frac{5}{2}](https://tex.z-dn.net/?f=f%28-1%29%20%3D%20%5Cfrac%7B5%7D%7B2%7D)
![f(0) = 5](https://tex.z-dn.net/?f=f%280%29%20%3D%205)
![f(2) = 20](https://tex.z-dn.net/?f=f%282%29%20%3D%2020)
Step-by-step explanation:
Given
![f(x) = 5(2^x)](https://tex.z-dn.net/?f=f%28x%29%20%3D%205%282%5Ex%29)
Required
Determine f(-1); f(0) and f(2)
Solving f(-1)
In this case, we simply take x as;
![x = -1](https://tex.z-dn.net/?f=x%20%3D%20-1)
Substitute -1 for x in ![f(x) = 5(2^x)](https://tex.z-dn.net/?f=f%28x%29%20%3D%205%282%5Ex%29)
![f(-1) = 5(2^{-1})](https://tex.z-dn.net/?f=f%28-1%29%20%3D%205%282%5E%7B-1%7D%29)
Apply law of indices
![f(-1) = 5 * \frac{1}{2}](https://tex.z-dn.net/?f=f%28-1%29%20%3D%205%20%2A%20%5Cfrac%7B1%7D%7B2%7D)
![f(-1) = \frac{5}{2}](https://tex.z-dn.net/?f=f%28-1%29%20%3D%20%5Cfrac%7B5%7D%7B2%7D)
Solving f(0)
In this case, we simply take x as;
![x = 0](https://tex.z-dn.net/?f=x%20%3D%200)
Substitute 0 for x in ![f(x) = 5(2^x)](https://tex.z-dn.net/?f=f%28x%29%20%3D%205%282%5Ex%29)
![f(0) = 5(2^0)](https://tex.z-dn.net/?f=f%280%29%20%3D%205%282%5E0%29)
![f(0) = 5(1)](https://tex.z-dn.net/?f=f%280%29%20%3D%205%281%29)
![f(0) = 5](https://tex.z-dn.net/?f=f%280%29%20%3D%205)
Solving f(2)
In this case, we simply take x as;
![x = 2](https://tex.z-dn.net/?f=x%20%3D%202)
Substitute 2 for x in ![f(x) = 5(2^x)](https://tex.z-dn.net/?f=f%28x%29%20%3D%205%282%5Ex%29)
![f(2) = 5(2^2)](https://tex.z-dn.net/?f=f%282%29%20%3D%205%282%5E2%29)
![f(2) = 5(4)](https://tex.z-dn.net/?f=f%282%29%20%3D%205%284%29)
![f(2) = 20](https://tex.z-dn.net/?f=f%282%29%20%3D%2020)
Answer:
19/27
Step-by-step explanation:
Each time that you roll a dice, there is a 1/3 chance you get a 5/6(assuming you have a fair dice). The probability of rolling that atleast once is the inverse of the probability of rolling a 1-4 each time. There is a
chance each time you roll the dice. Thus raising this to the third power results in
. Since we are looking for the inverse probability, we can do:
In order to get our final answer.