Answer:
-4
Step-by-step explanation:
Notice that the only way to multiply 2 numbers from each of the polynomials and get an x term is to multiply a constant and an x term.
The only ways to do that is to multiply -6x by 3 and 7x by 2.
After you're done multiplying, just combine the 2 like terms:
-18x+14x
=-4x
Therefore, the coefficient of the x term is -4.
Answer:
Since both terms are perfect squares, factor using the difference of squares formula,
a
2
−
b
2
=
(
a
+
b
)
(
a
−
b
)
where
a
=
3
x
and
b
=
1
.
(
3
x
+
1
)
(
3
x
−
1
)
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
Null hypothesis: mean of valence for all metal song is equal to mean of valence of blues song.
Null hypthesis tests the claim
Altenate hypothesis: mean of valence for all metal songs is not equal to mean of valence of blues song.
Alternate hypothesis rejects the claim.
Answer:
a
Step-by-step explanation: