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1645323

  • 2 years ago

The dimensions of a refrigerator are: height = 4x - 3 feet, length = x + 5 feet, and width = x - 2 feet. What is the volume of the refrigerator? Select one: a. 4x3 + 12x2 - 40x + 30 b. 4x3 + 9x2 - 49x + 30 c. 4x3 - 3x2 - 40x + 30 d. 4x3 - 8x2 - 15x + 30

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  1. Kaederfds
    • 2 years ago
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    just height x length x width

  2. Kaederfds
    • 2 years ago
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    i got B (: how about you?

  3. 1645323
    • 2 years ago
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    how do you multiply all of this?

  4. Kaederfds
    • 2 years ago
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    One by one (:

  5. 1645323
    • 2 years ago
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    so 4x-3 and x+5 first?

  6. 1645323
    • 2 years ago
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    i got 4x^2+17x-15

  7. Kaederfds
    • 2 years ago
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    it'll be more easy if you multiply (x+5) and (x-2) first, I think. But that's not a problem, just continue (:

  8. 1645323
    • 2 years ago
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    is it x^2+3x-10?

  9. 1645323
    • 2 years ago
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    @Kaederfds is it B? that's what I got

  10. Kaederfds
    • 2 years ago
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    yes, it is B. You're true (:!

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