3 years ago

Need help on number 3! Ik the answer for number 4 only 3!!!

Mathematics

1 answer:

NeX [460]3 years ago

5 0

1 degree is the answer

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What are the roots of the polynomial equation x superscript 4 baseline x cubed = 4 x squared 4 x? use a graphing calculator and

Reika [66]

The roots of the polynomial equation x superscript 4 baseline x cubed = 4 x squared 4 x are –2, –1, 0, 2.

The polynomial equation is given as:

$x^4+x^3-4x^2-4x=0\\x(x^3+x^2-4x-4)=0\\x=0\\OR\\\\x^3+x^2-4x-4=0\\(x-2)(x+2)(x+1)=0\\x=-1,-2,0,2$

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fredd [130]

According to irrational numbers the answer is c

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3 years ago

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Show that x=1 is not a solution to 4x+2 2 = 13.

likoan [24]

Answer:

Replacing x = 1 in the equation above, we have: (4x1) + 22 = 13

=> 5 +22 = 13 => 27 $\neq$ 13

So 27 is not equal to 13 => x=1 is not a solution to 4x+22 = 13.

Step-by-step explanation:

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the temperature at noon on a monday in december was -11°c. by noon on tuesday it has warmed by 17°c. what was the temperature at

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An old railroad car was able to haul one days worth of coal in 15 hours the new railroad car only takes 10 hours because of high

masha68 [24]

Step-by-step explanation:

Old Railroad Car:

1 day of coal in 15 hours
1/15 days of coal in 1 hour

New Railroad Car:

1 day of coal in 10 hours
1/10 days of coal in 1 hour

Total number of days of coal in 1 hour

= 1/15 + 1/10 = 1/6.

Since there is 1/6 days of coal in 1 hour,

there will be 1 day of coal in 6 hours.

It will take them 6 hours to transport the supply.

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