Answer: Each time the pentagon is rotated , it maps back onto itself. There are five values of for which the pentagon maps back onto itself. This is the same as the number of sides of the pentagon.
Step-by-step explanation:
Simplify :
x4−6x3+2x−7+7x3−x+5x2+2−x4
x4−6x3+2x−7+7x3−x+5x2+2−x4
Rearranging and collecting the like terms, we get:
=(x4−x4)+(−6x3+7x3)+5x2+(2x−x)+(−7+2)
=(1−1)x4+(−6+7)x3+5x2+(2−1)x+(−7+2)
=(1)x3+5x2+(1)x−7+2
=x3+5x2+x−5
Salad and pbj: 24 students
Turkey sandwich and school lunch: 30 students
30
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24
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6
