1 year ago

The perimeter of the quadrilateral below is 119 units. Find the length of side AB.

Mathematics

1 answer:

anzhelika [568]1 year ago

3 0

Answer:

Step-by-step explanation:

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What are all of the real roots of the following polynomial? f(x) x^4-24x^2-25

Greeley [361]

Answer:

x = ±5

Step-by-step explanation:

We are given the following polynomial function and we are to find all of its real roots:

$x^4-24x^2-25$

Let $y=x^2$ so we can now write it as:

$y^2-24y-25$

Factorizing it to get:

$(y^2+y)+(-25y-25)$

$y\left(y+1\right)-25\left(y+1\right)$

$\left ( y + 1 \right ) \left ( y - 2 5 \right)$

Substitute back $y=x^2$ to get:

$\left ( x^2 + 1 \right ) \left ( x^2 - 25 \right )$

$\left ( x^2 + 1 \right ) \left ( x + 5 \right ) \left ( x - 5 \right )$

The quadratic factor has only complex roots. Therefore, the real roots are x = ±5.

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pav-90 [236]

Angle 8 is 60 too
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You read 16 pages in 20 minutes and your friends read 25 pages in 30 minutes who reads faster

guapka [62]

Answer:

You read faster because in 20 minutes you read 16 pages but your friends had 30 minutes they had more time that's why they read more pages not because they read fast

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Ann [662]

Step-by-step explanation:

QR= 1.5 inches

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Mai wants to make a scale drawing of her kitchen. Her kitchen is a rectangle with length 600 cm and width 200 cm. She decides on

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