6.4x10^5 + 0.36x10^5 = 6.76x10^5, or 676,000
C, multiply the powers in the parentheses by 2
In order to calculate that, you need to substitute for x = 20
t(20) = 20 + 0.029(20)
t(20) = 20 + 0.58
t(20) = 20.58
In short, Your Answer would be 20.58
Hope this helps!
Hello,
f(x)=x²-x+1
f(-2a)=(-2a)²-(-2a)+1
=4a²+2a+1
