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Vlad1618 [11]
3 years ago
11

Find the cubic equation that has -1 and 2i as roots

Mathematics
1 answer:
ryzh [129]3 years ago
6 0
The cuic equation is -1 and 2i
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The length of 2 sides of a triangle are 12 inches and 4 inches. Which is the third side?
Westkost [7]

Answer:

Let x = the third side

 

In a triangle, the sum of any 2 sides must be larger than the third side.

I believe this is called the triangle inequality theorem.

 

We can construct 3 inequalities to obtain the range of values for the third side.

 

  (Inequality #1)   12 + 4 > x

                                  16 > x

 

  (Inequality#2)    12 + x > 4

                                    x > -8   (we can discard this ... we know all sides will be positive)

 

  (Inequality #3)   4 + x > 12

                                   x > 8

 

So when we combine these together,  

 

   8 < x < 16

 

X (the third side) must be a number between 8 and 16. but not including 8 and 16

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2 years ago
F(x) = 5x2 − 70x + 258. Complete the square.
astraxan [27]
5(x^2 - 14x + 258/5)
= 5((x-7)^2 -49+258/5)
= 5((x-7)^2 + 13/5)
= 5(x-7)^2 + 13
I belive this is how it should be done
7 0
3 years ago
Is 4/6 = 9/12 not proportionate
andre [41]

\text{If}\ \dfrac{a}{b}=\dfrac{c}{d}\ \text{is proportional, then}\ ad=bc.\\\\\text{We have}\ \dfrac{4}{6}=\dfrac{9}{12}.\ \text{Cross multiply}\\\\(4)(12)=(6)(9)\\\\48=54\ FALSE\\\\Answer:\ NOT\ PROPORTIONAL

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An amusement park manager determined that about 23 of all customers would wait in long lines to ride the new roller coaster. Whi
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Answer:

Top Left in I.M.

Step-by-step explanation:

Trust me

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3 years ago
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Perrin uses 24 ounces of milk in a recipe. How many cups is 24 ounces?
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1 cup= 8 ounces
 
24 ounces= 3 cups
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3 years ago
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