This is a weird one. I'm going to work it, but I also want you to look back at the
book or the worksheet and make sure that you copied it correctly.
Because it's weird, I tell you.
| y + 9 | > 4
Subtract 9 from each side of the inequality:
<em> | y | > -5</em>
OK. Now, here we go:
'Absolute value' means just the size of the number, no matter whether it's
negative or positive. <em>So the absolute value of every number is positive</em>.
Got that ? <em>The absolute value of every number is positive</em>.
So <u>EVERY</u> number is a solution to this inequality. It doesn't matter what number
' y ' is, its absolute value is always positive. And if the absolute value is always
positive, then it's definitely always greater than -5 .
Weird ? I told you so.
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:
D
Step-by-step explanation:
I got 130.24 square feet. Hope that helps.
Fist you take the 1/2 and convert it into 5/10 because 5/10 is half of 10. So 1/2 is the same as 5/10 then it is just simple adding 2+3=5 and then 5/10+5/10=1 add 5+1=6
The answer is 6