3 – (–2) =
Question
Updated 7/20/2014 9:38:00 PM
This conversation has been flagged as incorrect.
Flagged by yeswey [7/20/2014 9:35:17 PM]
Original conversation
User: What is the area of a circle with a diameter of 6?

User: 3 – (–2) =

Weegy: 2+3=5
IfNotSo|Points 7291|

User: 5x – 13 = 3x + 3

Weegy: 5x2+3=13
mabeld|Points 5|

User: If x + y = 7 and 2x – y = 2, then y = ?

Weegy: This is an easy mathematical problem. In order to find the slope and the Y intercept of the equation all you need to do is bring the equation in the general form, y = mx + c. It will become y = 2x - 5. [ [ In this case as we can see 2 is the slope and -5 is the y intercept. ] ]
lycan_1005|Points 569|

User: equivalent to (a – b)(a + b)?

Question
Updated 7/20/2014 9:38:00 PM
This conversation has been flagged as incorrect.
Flagged by yeswey [7/20/2014 9:35:17 PM]
Rating
3
The area of a circle with a diameter of 6 is: A = Pi*r^2 = 3.14*(6/2)^2 = 28.26
Confirmed by yumdrea [7/20/2014 9:41:49 PM]
3
5x – 13 = 3x + 3
5x - 3x = 3 + 13
2x = 16
x = 16/2 = 8
Confirmed by yumdrea [7/20/2014 9:41:51 PM]
3
If x + y = 7 and 2x – y = 2, then y = 4.
x + y = 7
2x – y = 2,
adding up equations the result is: 3x = 9,
x = 9/3 = 3
y = 7 - x = 7 - 3 = 4
Confirmed by yumdrea [7/20/2014 9:41:52 PM]
3
a^2 - b^2 is equivalent to (a – b)(a + b).
Confirmed by yumdrea [7/20/2014 9:41:53 PM]

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