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Yuliya22 [10]
3 years ago
10

What side is opposite angle X? XZ ZY YX NONE OF ABOVE

Mathematics
1 answer:
Ierofanga [76]3 years ago
8 0
Side ZY is the opposite side of angle X
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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

7 0
3 years ago
Simplifying algebraic expressions<br> -8-4m-4m-8+ -3+10m
marissa [1.9K]

-2m-9 is the simplified expression

6 0
3 years ago
Graph the image of the given triangle, translated 4 units to the right and 5 units down.
LUCKY_DIMON [66]
Here the photo is attached

8 0
3 years ago
PLEASE HELP!!!!!! FAST!!!!!!!!
klio [65]

Answer:

%8.75 error

Step-by-step explanation:

14.6/n = 16/100

16n = 1460

n = 91.25

100-91.25 = 8.75

7 0
2 years ago
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7t + 4 is less than or equal to 3t
Ket [755]
-7t-3t would be -4t
4 is less than or equal to -4t
Divide 4from -4
-1 is less than or equal to t
6 0
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