Ineed with question 2. i think my answer is incorrect.

395

You are 100% right! You go!

Step-by-step explanation:

We are given f(x)=5x^2-2x+8 and are asked to find the value of the function at x=9.

So replace x with (9):

f(9)=5(9)^2-2(9)+8

f(9)=5(81)-18+8          I did the exponent 9^2 and 2(9) in this step:

f(9)=405-18+8           I did 5(81) in this step

f(9)=405-10               I did -18+8 in this step

f(9)=395

answer: it's a

step-by-step explanation:

these sign is used to tell weather the number is greater or less than the number   <   or >     but this sign means its equal =    

hope this you and

step-by-step explanation: