3 years ago

Find roots of the equation and state the multiplicity

Mathematics

1 answer:

olya-2409 [2.1K]3 years ago

7 0

$({x + 2})^{3} = {x}^{3} + 6 {x}^{2} + 12x + 8$
so the answer is
$x = - 2$

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Find the value of x.

Colt1911 [192]

Answer:

x = 16 2/3

Step-by-step explanation:

The altitude divides the triangle into similar triangles. We can form the ratio between the hypotenuse and the short leg for two of the triangles. Those ratios will be a proportion:

10/6 = ((x-6) +6)/10

100/6 = x . . . . . multiply by 10 and simplify

x = 16 2/3

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3 years ago

The area of a square carpet tile is 900 square centimeters. What is the length of one edge of the tile in centimeters

satela [25.4K]

Let the side of one edge of tile = a cm.

So area of tile = (side)^2 = $a^2$

But area of tiles = 900 square centimeter.

So $a^2 = 900$

$a = \sqrt{900}$
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So side of one edge of tile is = 30 cm

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3 years ago

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vovikov84 [41]

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2 years ago

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Can a 3 foot-by-9 foot rectangle be a scaled copy of a 3 foot-by-1 foot rectangle? Explain

Bumek [7]

No,because 9 feet is way bigger than 1 foot.

7 0

3 years ago

What is the value of fraction 1 over 3x3 + 5.2y when x = 3 and y = 2?

Slav-nsk [51]

Hello from MrBillDoesMath!

Answer:

1/ 91.4

Discussion:

Evaluate 1/ ( 3x^3 + 5.2y) when x = 3, y = 2.

1/ (3 (3)^3 + 5.2(2)) =

1/ ( 3 * 27 + 10.4) =

1/ ( 81 + 10.4) =

1/ (91.4) =

.0109 (approx)

Thank you,

MrB

6 0

3 years ago