Question and answer
Find the distance between the points (3, 8) and (-1, 9).
Question
Asked 6/4/2013 11:19:42 PM
Updated 7/23/2014 11:53:59 PM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by yeswey [7/23/2014 11:52:33 PM]
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User: Find the distance between the points (3, 8) and (-1, 9).

Weegy: distance formula d^2= (x2-x1)^2 + (y2-y1)^2 d^2= (-1-3)^2 + (9-8)^2 d^2= (-4)^2 + (1)^2 d^2= 16+1 d^2= 17 d= ?17
jeifunk|Points 9870|

User: Find the midpoint of the line segment whose endpoints are (-2, 5) and (4, -9). (2, -7) (1, -4) (1, -2)

Weegy: (1, -2) is the midpoint of the line segment whose endpoints are (-2, 5) and (4, -9).
andrewpallarca|Points 22283|

User: y(y + 4) - y = 6 is a quadratic equation. True False

Weegy: False. y(y 4) - y = 6 is written as: y^5 -y - 6 = 0. A quadratic equation is a second-order polynomial equation in a single variable y and this is not a second order polynomial equation.
befeeter|Points 376|

User: Which of the following describes the translation of the graph of y = x 2 to obtain the graph of y = -x 2 - 3? reflect over the x-axis and shift left 3 reflect over the x-axis and shift down 3 reflect over the y-axis and shift down 3

Weegy: B)reflect over the x-axis and shift up 3
latefisher|Points 3420|

User: Write the quadratic equation in general form and then choose the value of "b." (2x - 1)(x + 5) = 0 9 10 11

Weegy: The answer for 2X+1=11 is X = 5.
jeifunk|Points 9870|

User: Which of the following constants can be added to x 2 - x to form a perfect square trinomial?

Weegy: The answer is 1/4. Here, I'll show you how to get that answer: Trial and Error Method: 1) 1/4, [ 1/2 and 1 are the possible answers in the choices but we know that 1/2 is not a perfect square so it's not possible for 1/2 to be the answer. 2) Now try 1/4 and 1 and add them to the equation to get: x2 - x + 1/4 x2 - x + 1 3)Use the perfect square formula if you can: x2 - x + 1/4 becomes (x-1/2)2? Yes! x2 - x + 1 becomes (x-1)2?...No! that's wrong because (a-b)2 = a2-2ab +b2 Thus, 1/4 is the answer. Easy Formula Method: 1) In a perfect square trinomial, c = (b/2a)2. a=1 because it's the co-efficient of x2 b=1 because it's the coefficient of x c=? and it's the missing constant using the formula and the given, c = 1/4. That's it! :D Good Luck! ]
Serrys|Points 110|

User: Which of the following points lies on the circle whose center is at the origin and whose radius is 10?

User: The graph of y = ax 2 + bx + c is a parabola that opens up and has a vertex at (-2, 5). What is the solution set of the related equation 0 = ax 2 + bx + c? Ø {-2} {5}

Weegy: Try this: [ ]
Expert answered|keenah08|Points 10|

Question
Asked 6/4/2013 11:19:42 PM
Updated 7/23/2014 11:53:59 PM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by yeswey [7/23/2014 11:52:33 PM]
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Rating
3
(2x - 1)(x + 5) = 0
2x^2 + 10x - x - 5 = 0
2x^2 + 9x - 5 = 0 which is the general form.
The value of "b" is 9.
Added 7/23/2014 11:53:59 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [7/23/2014 11:59:11 PM]
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