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3 years ago

Find the measure of

Mathematics

1 answer:

FrozenT [24]3 years ago

8 0

Answer:

158.4 degrees.

Step-by-step explanation:

A line is 180 degress in total so subtract 21.6 from 180. Then you get 158.4

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Please help with this Math Question...

Nataly [62]

Answer: A

<u>Step-by-step explanation:</u>

f(x) = x³ + 4x² + 7x + 6

possible rational roots are ±{1, 2, 3, 6}

Try x = -2

-2 | 1 4 7 6

1 2 3 0 ← remainder is 0 so x = -2 is a root ⇒ (x + 2) = 0

The factored polynomial x² + 2x + 3 = 0 is not factorable so use the quadratic formula to find the roots.

a=1, b=2, c=3

$x=\dfrac{-b\pm\sqrt{b^2-4ac} }{2a}$

$x=\dfrac{-(2)\pm\sqrt{(2)^2-4(1)(3)} }{2(1)}$

$x=\dfrac{-2\pm\sqrt{4-12} }{2}$

$x=\dfrac{-2\pm\sqrt{-8} }{2}$

$x=\dfrac{-2\pm2i\sqrt{2}}{2}$

$x = -1 \pm i\sqrt{2}$

$x = -1 + i\sqrt{2}$ $x = -1 - i\sqrt{2}$

$x - (-1 + i\sqrt{2})=0$ $x - (-1 - i\sqrt{2})=0$

The factors are:

$(x - 2)[x - (-1 + i\sqrt{2})][x - (-1 - i\sqrt{2})]$

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2 years ago

Simplify (2x^2y)^3 (-3xy^2)^2

solniwko [45]

Simplified it's 576x^8y^7

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3 years ago

Angad and Alex have played 40 tennis matches.

AlladinOne [14]

Answer:

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1 year ago

-3x = 36 X = ________ can someone answer this plz

koban [17]

Answer:

-12x

Step-by-step explanation:

36÷(-3)= -12

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2 years ago

Read 2 more answers

The length of a rectangle is 5 meters less than 3 times the width. The perimeter is 46 meters. Find the width.

Taya2010 [7]

Length=3width-5
(2(x))+(2(3x-5)=46
2x+6x+10=46
8x=56
x=7
width=7 length=16

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2 years ago