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3 years ago

10

Andrew is pouring a square shaped patio and needs 529 square feet of concrete what is the length of each side of the patio? Expl

ain

1 answer:

LekaFEV [45]3 years ago

4 0

Answer:

The answer is 23 feet on each side

Step-by-step explanation:

Sqrt of 529= 23

Hope it works

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∫∫x²(y-x)dxdy ,d là miền giới hạn bởi các đường y=x² và x=y²

Valentin [98]

It looks like the integral is

$\displaystyle \iint_D x^2 (y-x) \,\mathrm dx\,\mathrm dy$

where <em>D</em> is the set

<em>D</em> = {(<em>x</em>, <em>y</em>) : 0 ≤ <em>x</em> ≤ 1 and <em>x</em> ² ≤ <em>y</em> ≤ √<em>x</em>}

So we have

$\displaystyle \iint_D x^2(y-x)\,\mathrm dx\,\mathrm dy = \int_0^1 \int_{x^2}^{\sqrt x} x^2(y-x)\,\mathrm dy\,\mathrm dx \\\\ = \int_0^1 \left(\frac{x^2y^2}2-x^3y\right)\bigg|_{y=x^2}^{y=\sqrt x} \\\\ = \int_0^1 \left(\frac{x^3}2-x^{7/2}+x^5-\frac{x^6}2\right)\,\mathrm dx \\\\ = \left(\frac{x^4}8 - \frac{2x^{9/2}}9 + \frac{x^6}6 - \frac{x^7}{14}\right)\bigg|_{x=0}^{x=1} = \frac18-\frac29+\frac16-\frac1{14} = \boxed{-\frac{1}{504}}$

5 0

3 years ago

How do you find the volume of a rectangular prism?

Elan Coil [88]

You multiply height x width x length to get the volume

8 0

3 years ago

The width of a rectangle is represented by 5 + 2y. The length is twice as long as the width. What is the perimeter of the rectan

Lilit [14]

The answer is 12y+30.
Twice the width would be 10+4y, so the length is 10+4y.
To find the perimeter, we can do 2(5+2y) + 2(10+4y).
That equals 10+4y+20+8y.
Which, equals 12y+30.

3 0

3 years ago

Help me pls 30 points

zzz [600]

Answer:

200cm squared

Step-by-step explanation:

because im smart

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3 years ago

I need help with this pls

olchik [2.2K]

Answer:

39.75 meters

Step-by-step explanation:

7.5 x 5.3 =

39.75 meters of foam

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2 years ago