Answer:
To find the degree of the polynomial, add up the exponents of each term and select the highest sum.
Step-by-step explanation:
<em>this is what google says btw</em>
$140
8x+6x
10^2= 2^2 x a^2
a^2= 100-4
a= √96
a= 9.79..
a= 9.8
f(9)=-22-9(9)+20=-83
f(9) means x = 9, Just substitute 9 into the function.
-9(9) = -81
-22-81+20 = -83