2 years ago

Convert n √a into pure surds

Mathematics

1 answer:

Brrunno [24]2 years ago

4 0

Answer:

√n²a

Step-by-step explanation:

aaand this app needs 20 characters

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HELP ASAP PLEASE & SHOW UR WORK!! THANK YOU <333

alekssr [168]

Answer:

$\bold{x_1=-\dfrac{3+\sqrt{41}}{2}\approx-4.7\ ,\quad x_2=-\dfrac{3-\sqrt{41}}{2}\approx1.7}$

Step-by-step explanation:

$-2x^2-3x+4=0\\\\a=-2\,,\ b=-3\,,\ c=4\\\\\\x=\dfrac{-b-\sqrt{b^2\pm4ac}}{2a}=\dfrac{-(-3)\pm\sqrt{(-3)^2-4(-2)(4)}}{2(-1)}=\dfrac{3\pm\sqrt{9+32}}{-2}\\\\\\x_1=-\dfrac{3+\sqrt{41}}{2}\approx-4.7\ ,\qquad x_2=-\dfrac{3-\sqrt{41}}{2}\approx1.7$

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2 years ago

The Rotation R maps all 60° about O the center of the regular hexagon. State the image of B for the following rotation.

Andru [333]

It is B. Since each angle is 60 degrees, if you rotate B counterclockwise 6 times, it means that you rotated B 360 degrees. Therefore, the image of B would be B.

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2 years ago

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617 – 3y) + 6(y- 1) Answer -12y+48

Reil [10]

Answer:

vbnvbnvbnvnvbnvbnvbnvbn

Step-by-step explanation:

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2 years ago

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