Answer:
6x^3+11x^2-14x+12
Step-by-step explanation:
We just simply add like terms (terms with same power of x):

Like terms are in brackets now
So you just simplify now to give you:

Answer:
C. 70 cm
Step-by-step explanation:
Split all the shapes, so, the square would be:
4 × 10 = 40
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Each triangle has an area of 7.5:
7.5 × 4 = 30
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30 + 40 = 70
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Have a good day :)
There is a 50/50 chance she does or doesnt take a red marble out the back so its most likely 40 times because of how there are other 2 colors and she is putting back the marbles in the bag
6 hours.
First, let's determine how far apart Leona and Sam are after 1 hour. At that time, the bus travelling East will be 60 miles away from the station, and the bus travel West will be 40 miles away from the station in the opposite direction. And since 60 + 40 = 100, Leona and Sam would be 100 miles apart from each other. So for every hour, their separation increases by 100 miles. Now all we need to do is divide 600 miles by 100 miles/hour to get the number of hours it would take to separate them by 600 miles. So: 600 miles / 100 miles/hour = 6 hours.