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Shkiper50 [21]
3 years ago
5

What is the area of a rectangular prism

Mathematics
1 answer:
OleMash [197]3 years ago
8 0
The area of a rectangular prism would be A=2(wl+hl+hw)

I hope this helped! Mark me Brainliest! :) -Raven❤️
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Find the polynomial of lowest degree with only real coefficients and having the given zeros. -7i and square root of 2
mario62 [17]

Answer:

x³ - (√2)x² + 49x - 49√2

Step-by-step explanation:

If one root is -7i, another root must be 7i.  You can't just have one root with i.  The other roos is √2, so there are 3 roots.  

x = -7i       is one root,

   (x + 7i) = 0    is the factor

x = 7i       is one root

  (x - 7i) = 0     is the factor

x = √2      is one root

    (x - √2) = 0   is the factor

So the factors are...

(x + 7i)(x - 7i)(x - √2) = 0

Multiply these out to find the polynomial...

(x + 7i)(x - 7i) =  x² + 7i - 7i - 49i²

Which simplifies to

  x² - 49i²        since i² = -1 , we have

    x² - 49(-1)  

 

      x² + 49

Now we have...

(x² + 49)(x - √2) = 0

Now foil this out...

 x²(x) - x²(-√2) + 49(x) + 49(-√2) = 0

     x³ + (√2)x² + 49x - 49√2

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Could you help me with number 18
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The better bargain is the 4 quarts 

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6th grade math help me pleaseee:(
marshall27 [118]

Answer:

8 ounces

Step-by-step explanation:

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Can you help me with this question I am stuck it would be nice if u helped me! <3
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Answer:

You did it correctly that's the right answer

Great Job!

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