Factor this by grouping. Group the first two terms together and then the second 2 terms together. The idea here is that, after grouping, what you can pull out in both groups is the same. Like this:
Now work on finding a common thing between the 2 groups:
See, what you have in common there now is the (x-9) that you can factor out:
And that is factored completely.
Answer: 30
Step-by-step explanation:
40 + 8x = 280
-40 -40
8x = 240
___ ____
8 8
X = 30
Speed = distance/time
distance = speed * time
let x = time covered by running
15 = run distance + walk distance
15 = 9(x) + 3(3-x)
15 = 9x + 9 - 3x
15 - 9 = 6x
6 = 6x
x = 1 hour
Therefore:
Running distance = speed * time
RD = 9km/hr * 1 hr
RD = 9km
The answer would be
•“The manager should check both relative frequencies by row and by column to look for an association.”
This is because the manager wants to know whether a customer buys more than $30 worth of stuff at their store with coupons taking off a lot or a little bit of the price.
If you want please mark BRAINLIEST.!
Hope this helps! :)
A refelction over x axis mean times -1 the whole function
so
the transformed graph is y=-x²
