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Q: A sporting goods store sells backpacks made of three different materials (canvas, nylon, or leather). Each backpack comes in one of three different colors (green, black, or blue). How many different
types of backpacks are there?A. 12B. 9C. 6D. 3?
A: The answer is B. 9
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Use the quadratic formula to solve the quadratic equation x2 - 8x - 4 = 0.
Weegy: ax^2 + bx + c. To solve this, you need to know the formula for a quadratic equation. This is -b + or - the square root of (b^2 - 4ac) ALL OVER 2a. [ From your equation you can see what a, b and c are based on the general form shown in the beginning of my explanation. So, a is 1, b is 8 and c is 12. Plug it into the latter formula to get....-8+or- square root of (8^2 - 4 (1)(12) ALL OVER 2(1). Now, just simplify to get -8 +or- sq rt (96) ALL OVER 2....simplify further to get your final answer. ] User: implify to get -8 +or- sq rt (96) ALL OVER 2 (More)
Question
Updated 3/29/2014 9:57:02 AM
x^2 - 8x - 4 = 0; a = 1, b = -8, c = -4
x = [-b +/- sqrt(b^2 - 4ac)]/2a
= [-(-8) +/- sqrt((-8)^2 - 4(1)(-4)]/2(1)
= (8 +/- 4 sqrt 5)/2
= 4 +/- 2 sqrt 5
Confirmed by andrewpallarca [3/29/2014 9:58:20 AM]
Simplify: ( y^-7 × y^-3 )^-1
Weegy: 6(y+7) = 0 then 6y+42 then 6y= -42 then y =-7 User: What is the mean of this data? 17, 34, 19, 27, 30, 23 (More)
Question
Updated 9/24/2014 7:06:25 AM
( y^-7 × y^-3 )^-1
=(y^ -10 )^-1
= (1/y^10) ^-1
= y^10
Confirmed by andrewpallarca [9/24/2014 7:06:26 AM], Rated good by andrewpallarca
The mean of 17, 34, 19, 27, 30, 23 is 25 .
( 17+34+19+27+30+23)/6
= 150/6
=25
Confirmed by andrewpallarca [9/24/2014 7:09:47 AM]
What is the slope (m) and y-intercept of the line represented by the equation y = -9x - 6?
Weegy: y = -9x - 6, slope = -9, y-intercept = -6 (More)
Question
Updated 7/10/2014 8:03:43 AM
What is the equation of the line, in point-slope form, that passes through the points (9, 1) and (4, 16) A. y + 1 = -3(x + 9)B. y - 1 = -3(x - 9)C. y + 1 = 3(x + 26)D. y - 1 = 3(x - 26)?
Question
Updated 9/24/2014 7:07:05 AM
y - 1 = -3(x - 9) is the equation of the line, in point-slope form, that passes through the points (9, 1) and (4, 16) .
the slope = (16-1)/ (4-9) = -3 , and then put (9,1) in y -1 = -3(x -9)
we can get the answer is correct .
Confirmed by andrewpallarca [9/24/2014 7:07:11 AM], Rated good by andrewpallarca
Which of the following is a unit of measurement in the metric system?A. Pound B. Gram C. Mile D. Fahrenheit
Question
Updated 10 days ago|6/13/2018 4:55:56 PM
Gram is a unit of measurement in the metric system.
Added 10 days ago|6/13/2018 4:55:56 PM
Confirmed by Masamune [6/14/2018 11:50:02 AM], Masamune [6/14/2018 11:50:02 AM]
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