You answer would be 432000 as your answer
Solution:
p(-1)=3 and p(5)=20
x=-1 and x=5
From the equation given you have one for any number smaller then 4and any number bigger then 4.
So if you plug -1 into the correspondant equation you would get 3 and if you plug 5 into the correspond equation you would get 20.
Answer:
Second one.
Answer:
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1. 3(p+q)=p
3p+3q=p; 3p-p=3q; 2p=q so p=q/2
2. 4a=2b-7
2b=4a+7 so b=(4a+7)/2
when a=3 , b=(12+7)/2=19/2=9.5
3. d=rt; r=d/t
4.( 2x15)+(2xwidth)=90
2x width=90-30
width =60/2=30