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?

The answer is B. 9

Expert answered|dennis003|Points 295|

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Asked 7/13/2012 6:53:15 PM

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__________ is a time line that shows how conditions and organisms have changed on Earth. A. Geologic Time B. Periodic Time C. Geologic Time Scale D. Periodic Time Line?

Weegy: A. Geologic Time User: A(n) __________ is a fossil created when hard parts of an organism are replaced with minerals that turn to stone. A. cast fossil B. trace fossil C. petrified fossil D. imprint fossil? Weegy: B. trace fossil (More)

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Asked 7/13/2012 9:35:39 AM

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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 ... (More)

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Updated 118 days ago|3/29/2014 9:57:02 AM

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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

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

Added 118 days ago|3/29/2014 9:56:57 AM

If f(x) = x2 - 2x + 9 and g(x) = 8 - x, what is (f o g)(-4) A. 111B. 144C. 120D. 129?

Weegy: B. 144C. (More)

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Asked 7/13/2012 12:45:56 PM

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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 ... (More)

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Asked 7/13/2012 12:52:47 PM

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Simplify: ( y-7 × y-3 )-1

Weegy: 6(y+7) = 0 then 6y+42 then 6y= -42 then y =-7 User: Simplify: ( y-7 × y-3 )-1A. y-21B. y 21C. y-10D. y 10? 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)

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Asked 7/13/2012 1:12:55 PM

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