Answer:
Choose the 8th row of Pascal's triangle to get the sequence:
1
,
7
,
21
,
35
,
35
,
21
,
7
,
1
Write the powers of
2
in ascending order up to
2
7
as a sequence:
1
,
2
,
4
,
8
,
16
,
32
,
64
,
128
Multiply the two sequences together to get:
1
,
14
,
84
,
280
,
560
,
672
,
448
,
128
Then:
(
x
+
2
y
)
7
=
x
7
+
14
x
6
y
+
84
x
5
y
2
+
280
x
4
y
3
+
560
x
3
y
4
+
672
x
2
y
5
+
448
x
y
6
+
128
y
7
Answer:
x=-7
Step-by-step explanation:
-8x = 56
divide both sides by -8
that leaves you with x = -7
you can plug it in to check because -8 * -7 = 56
If -7 is the same thing as v, than v is -7
V = -7
-7 = -7
Answer:
5 11/50
Step-by-step explanation:
i used an online calculator and thats what it said
3 packages because you'll have 15 beads left over. which would complete the use of the packages