Answer:
f(9)= -59
Step-by-step explanation:
First, put 9 into x; which gives you...
f(9)= (-9)^2+9+13
f(9)= -81+9+13
f(x) = -x^2 + x + 13 find f(9) = -59
Hope this helps :)
plz ion know what is the awnser to mine
3
i dont knowkkkkkkkkkkkkk
no. because they are bot equivalent ratios or proportions
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