Ask question

Ask question

All categories

2 years ago

15

Niah packed 24 dozen candles into 3 boxes. She packed an equal number of candles into each box. How many candles did Niah pack i

nto each box?

1 answer:

pshichka [43]2 years ago

8 0

8 because 24 candles going into 3 boxes is 24 divided by 3 which is 8

You might be interested in

Simplify. pls pls pls helppp im really bad at math lol<br> a) 6 √3+ 4<br> b) 6 √6+ 3<br> c) 4 √3 + 6

Mandarinka [93]

I think your answer is going to b

5 0

2 years ago

Use the divergence theorem to calculate the surface integral s f · ds; that is, calculate the flux of f across s. f(x, y, z) = x

valkas [14]

$\mathbf f(x,y,z)=x^4\,\mathbf i-x^3z^2\,\mathbf j+4xy^2z\,\mathbf k$
$\mathrm{div}(\mathbf f)=\dfrac{\partial(x^4)}{\partial x}+\dfrac{\partial(-x^3z^2)}{\partial y}+\dfrac{\partial(4xy^2z)}{\partial z}=4x^3+0+4xy^2=4x(x^2+y^2)$

Let $\mathcal D$ be the region whose boundary is $\mathcal S$ . Then by the divergence theorem,

$\displaystyle\iint_{\mathcal S}\mathbf f\cdot\mathrm d\mathbf S=\iiint_{\mathcal D}4x(x^2+y^2)\,\mathrm dV$

Convert to cylindrical coordinates, setting

$x=r\cos\theta$
$y=r\sin\theta$

and keeping $z$ as is. Then the volume element becomes

$\mathrm dV=r\,\mathrm dr\,\mathrm d\theta\,\mathrm dz$

and the integral is

$\displaystyle\iiint_{\mathcal D}4x(x^2+y^2)\,\mathrm dV=\int_{\theta=0}^{\theta=2\pi}\int_{r=0}^{r=1}\int_{z=0}^{z=r\cos\theta+7}4r\cos\theta\cdot r^2\cdot r\,\mathrm dz\,\mathrm dr\,\mathrm d\theta$
$=\displaystyle4\iiint_{\mathcal D}r^4\cos\theta\,\mathrm dz\,\mathrm dr\,\mathrm d\theta$
$=\dfrac{2\pi}3$

4 0

3 years ago

Long division with 489

RUDIKE [14]

Answer:

9.4

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

4(b+2)=40 what is the value of b?

Katarina [22]

Answer:

Step-by-step explanation:

4b+8=40

4b=32

b=8

7 0

2 years ago

Read 2 more answers

Need help with question

Lady_Fox [76]

Answer:

8.06

Step-by-step explanation:

3.5^2 + 2^2 = 16.25

sqrt(16.25) = 4.03112887

2 * 4.03112887 = 8.06225774

8.06

8 0

1 year ago