Question and answer
If f(n) = n ^2 - n, then f(-4) is _____. -20 20 12 -12
Question
Asked 9/10/2014 9:46:58 PM
Updated 9/11/2014 12:01:01 AM
1 Answer/Comment
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Flagged by jeifunk [9/11/2014 12:01:01 AM]
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User: If f(n) = n ^2 - n, then f(-4) is _____. -20 20 12 -12

Weegy: 2w - 2 = -12, 2w=-10, w=-5
prabhjyot|Points 71|

Question
Asked 9/10/2014 9:46:58 PM
Updated 9/11/2014 12:01:01 AM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by jeifunk [9/11/2014 12:01:01 AM]
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If f(n) = n ^2 - n, then f(-4) is -12.

f(-4) = -4^2 - (-4)
= -16- (-4)
= -12

Added 9/11/2014 12:01:00 AM
This answer has been confirmed as correct and helpful.
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Questions asked by the same visitor
Solve -5 + w/3 = -1. 12 -12 2 -2
Question
Updated 9/4/2014 9:21:47 PM
1 Answer/Comment
-5 + w/3 = -1
w/3 = -1 + 5
w/3 = 4
w = 4 * 3
w = 12
Added 9/4/2014 9:21:47 PM
This answer has been confirmed as correct and helpful.
Solve 24 - 3x = -27.
Question
Updated 9/4/2014 10:06:05 PM
1 Answer/Comment
24 - 3x = -27
-3x + 24 = - 27
-3x = -27 - 24
-3x = -51
x = -51/-3
x = 17
Added 9/4/2014 10:06:05 PM
This answer has been confirmed as correct and helpful.
All of the following expressions have the same value except _____. (-2)(4) (2)(-4) -16 ÷ 2 -16 ÷ -2
Question
Updated 9/10/2014 7:44:49 PM
1 Answer/Comment
All of the following expressions have the same value except -16 ÷ -2.

(-2)(4) = -8; (2)(-4) = -8; -16 ÷ 2 = -8; -16 ÷ -2 = 8
Added 9/10/2014 7:44:49 PM
This answer has been confirmed as correct and helpful.
Which of the following expressions does not mean the same as the other three? x - 17 x + (-17) x - (-17) - 17 + x
Question
Not Answered
Updated 9/10/2014 11:42:22 PM
1 Answer/Comment
x - (-17) = x + 17 does not mean the same as the other three.

x - 17 = x - 17
x + (-17) = x - 17
x - (-17) = x + 17
- 17 + x = x - 17
Added 9/10/2014 11:42:22 PM
This answer has been confirmed as correct and helpful.
Find the value of -7 + 3(-12) ÷ (-3). -16 -19 -40 5
Question
Updated 9/11/2014 12:02:50 AM
1 Answer/Comment
-7 + 3(-12) ÷ (-3)
= -7 + -36/-3
= -7 + 12
= 5
Added 9/11/2014 12:02:50 AM
This answer has been confirmed as correct and helpful.
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