9514 1404 393
Answer:
B.
- as x increases, f(x) decreases;
- as x decreases,f(x) decreases
Step-by-step explanation:
The function is of even degree with a negative leading coefficient. f(x) will tend toward negative infinity as x gets larger or smaller. That is ...
- as x increases, f(x) decreases;
- as x decreases,f(x) decreases
_____
<em>Even degree</em> means the end behaviors are the same for both large and small x. <em>Negative leading coefficient</em> means the function value decreases for larger x.
Answer:
4
Step-by-step explanation:
when you multiply a number by itself, therefore you have to multiple 2twice
Answer:
The total number of U.S. high school students that played on a sports team that year can be estimated to be 7,950,000.
Step-by-step explanation:
From the random sample, we can expect that
of all students played on a sports team that year. So in the bigger sample of 15900000 high school students, we can expect
students to have played on a sports team that year.
Answer:
(x+5)⋅(x+4)= x2+9x+20
Step-by-step explanation:
(x+5)(x+4)
=x
2
+4x+5x+20=
=x
2
+9x+20
Answer:
I think it is A
Step-by-step explanation: