The area equation is

, which when solved equals 50.24. That's the third answer on your list.
Answer:
15/31
Step-by-step explanation:
substitute -9 were there's x in the function
f(-9)=2(-9)+3/4(-9)+5
=-18+3/-36+5
=-15/-31
the negatives cancel giving you
15/31
Answer:
The length is 5
The width is 11
Step-by-step explanation:
11 is more than two times bigger than 5
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Answer: $9.09
Explanation:
100% - 30% = 70

The Wise Orange loves to read <span>Diary of a Wimpy Kid. Which store is having that 30% discount?</span>
Answer:
If f(1)=0 then 1 is a root and (x-1) is a factor of f(x). divide f(x) by (x-1). you now have a quadratic. Find its roots by methods you know.
actually this factors by grouping:
f(x)=x³+3x²-x-3
= x²(x+3)-1(x+3)
=(x+3)(x²-1)
=(x+3)(x-1)(x+1) // difference of squares
By zero product property roots are
-3, -1, 1