Answer:
![x {}^{2} + 17x + 72](https://tex.z-dn.net/?f=x%20%7B%7D%5E%7B2%7D%20%2B%2017x%20%2B%2072)
Step-by-step explanation:
![x {}^{2} + 8x + 9x + 72 \\ {x}^{2} + 17x + 72](https://tex.z-dn.net/?f=x%20%7B%7D%5E%7B2%7D%20%20%2B%208x%20%2B%209x%20%2B%2072%20%5C%5C%20%20%7Bx%7D%5E%7B2%7D%20%2B%2017x%20%2B%2072%20)
Answer:
f(x) = 1.2x
Step-by-step explanation:
Given:
f(x - 5) = 1.2x - 6
Required:
Find f(x)
To solve f(x), we have to express f(x - 5) in terms of f(x).
This is done as follows
f(x - 5) = 1.2x - 6
Factorize the expression at the right hand side
f(x - 5) = 1.2(x - 5)
Now we can solve for f(x) by substituting x for x - 5 in the above expression (on the right hand side and the left hand side)
f(x) = 1.2x
Hence, if f(x - 5) = 1.2x - 6 then f(x) = 1.2x
He works 42.545 hours in 5 days
Since you didn't give an amount of time, we can't give an exact value. However, I can help you with the steps so you can get the correct answer.
First, you need to find the correct z-score. Then, use a standard normal distribution table to find the percent.
Let the time that you are looking for equal X.
The formula for your z-score is:
(x - 8.7) / 2.1 = z-score
Answer:
C. 1/4
Step-by-step explanation:
There are in total 12 marbles in the bag. So the probability of picking a red marble is 3/12. If you simplify that, you get 1/4.