-16t^2+400=0
16t^2=400
take square root on both sides.

4t=20
t=20/4
t=5
I would pick C sorry if it’s wrong
Answer:
X ≥9 years after 2009.
Step-by-step explanation:
Y=4x+4
Y-4=4x
X=(Y-4)/4
Y=number of U.S. households, in millions.
Y≥40
Y-4≥36
(Y-4)/4≥9
So, X≥9.
Captain has $30 money
Flame has $20 +$5 =$25
difference =30-25=5
Captain has $5 more money
Answer:
1
Step-by-step explanation:
Hello!
Plug in 2 for x and simplify.
<h3>Evaluate</h3>
We could have also simplified the fraction first. If a fraction has the same number in the numerator and the denominator, then it is always equal to 1, no matter what values of x.