Find the change
the change is 63-21=42
42 degrees in 12 hours
we want to find xdegrees/1hour
42/12=3.5 degrees per hour
The width of the court is 30 feet!
1.5/3=1.66667
2.6/3=2
3.2/9=2/9 (can not be simplified)
4.18/1=18
5.9/27=2/9
6.9/12=3/4
7.28/7=4
8.13/10=13/10(can not be simplified)
9.16/27=16/27(can not be simplified)
10.3/18=1/6
11.4/32=18
In this problem, you must change the signs of everything in the parenthesis, which will come to 3x^2 + x - 5x^2 - x + 4. Add like terms, and you will end up with -2x^2 + 4, which is answer choice A. Hope this helped
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