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Math Problems
Grade 7
Prime factorization
For the following function, find (a) the critical numbers, (b) the open intervals where the function is increasing, and (c) the open intervals where it is decreasing.
\newline
f
(
x
)
=
x
4
+
12
x
3
+
28
x
2
+
4
f(x)=x^{4}+12 x^{3}+28 x^{2}+4
f
(
x
)
=
x
4
+
12
x
3
+
28
x
2
+
4
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Find the greatest common factor of these three expressions
\newline
3
w
4
,
10
w
2
, and
6
3 w^{4}, 10 w^{2} \text {, and } 6
3
w
4
,
10
w
2
, and
6
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Steven found that between
2012
2012
2012
and
2020
2020
2020
, as a country's per capita chicken egg consumption increased, the country's divorce rate decreased. Based on this information, which of the following conclusions is valid?
\newline
Choose
1
1
1
answer:
\newline
(A) Eating chicken eggs prevents divorces.
\newline
(B) Divorces lead to a decrease in per capita chicken egg consumption.
\newline
(C) There is a positive association between per capita chicken egg consumption and divorce rate.
\newline
(D) There is a negative association between per capita chicken egg consumption and divorce rate.
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