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Natasha_Volkova [10]
2 years ago
12

If –3 + i is a root of the polynomial function f(x), which of the following must also be a root of f(x)? –3 – i –3i 3 – i 3i

Mathematics
2 answers:
Sunny_sXe [5.5K]2 years ago
5 0

Answer:

ITS A!

Step-by-step explanation:

Troyanec [42]2 years ago
3 0

Answer:

-3-i is the correct answer.

Step-by-step explanation:

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(a) One possibility is 8.45

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Rounded to the nearest tenth = 8.5

And rounding this to the nearest integer = 9

 

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Find the value of x, if angle x measures 102 degrees
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4. El costo de impresión de cada página en una biblioteca es de 5 centavos si es en blanco y negro o
ira [324]

Answer:

Juan imprimió 7 páginas a color.

Step-by-step explanation:

Llamemos "b" a las copias en blanco y negro y "c" a las copias en color.

Juan imprimió 75 páginas. En forma simbólica es:

b + c = 75  

b = 75 - c   [1]

El costo de impresión de cada página en una biblioteca es de 5 centavos si es en blanco y negro o  50 centavos si es a color. En total pago $6.90. En forma simbólica es:

0.05b + 0.5c = 6.90   [2]

Si reemplazamos [1] en [2],

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3.75 - 0.05c + 0.5c = 6.90

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4 0
2 years ago
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Gnoma [55]
My teacher told be to try and think of it as a circle, because circles are 360 degrees. Then to place those angles in the circle and it should make it easier to find the angles, because when you see it in the circle, you can divide it into 4 parts so that you would then have 4, 90 degree angles that you can then work off of by placing those angles you need to find into the circle. It was supposed to make it easier, and i genuinely hope that you can do this. You got this, and you will get through the pain of math tonight and many more. Good luck. ^-^
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2 years ago
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