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3 years ago

SOMEONE PLEASE HELP IM FAILINGGGG

Mathematics

1 answer:

daser333 [38]3 years ago

7 0

Answer:

HELP

Step-by-step explanation:

IM PASSINGGGG

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A roll of gasket material is 16 in wide. What length is needed to obtain 15 sq ft of the material? (Careful: The numbers are no

irakobra [83]

Answer:

l = 11.19 feet

Step-by-step explanation:

Given that,

The width of a roll of gasket material, b= 16 inches

We need to find the length needed to obtain 15 sq ft of the material.

We know that,

1 foot = 12 inches

⇒ 16 inhces = 1.34 feet

For a rectangular shaped object, area is given by :

A = l×b

$l=\dfrac{A}{b}\\\\l=\dfrac{15}{1.34}\\\\=11.19\ ft$

So, the required length is 11.19 feet.

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3 years ago

The water level is 8 feet below your dock.

mars1129 [50]

Step-by-step explanation:

The water level is 8 feet below your dock.

The tide goes out, and the water level lowers

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3 years ago

) Set up a double integral for calculating the flux of F=3xi+yj+zk through the part of the surface z=−5x−2y+2 above the triangle

Fynjy0 [20]

The surface (call it $S$ ) is a triangle with vertices at the points

$x=0,y=0\implies z=2\implies(0,0,2)$

$x=0,y=2\implies z=-2\implies(0,2,-2)$

$x=2,y=0\implies z=-8\implies(2,0,-8)$

Parameterize $S$ by

$\vec s(u,v)=(1-v)(2,0,-8)+v\bigg((1-u)(0,2,-2)+u(0,0,2)\bigg)=(2-2v,2v-2uv,-8+6v+4uv)$

with $0\le u\le1$ and $0\le v\le1$ . Take the normal vector to $S$ to be

$\vec s_v\times\vec s_u=(20v,8v,4v)$

Then the flux of $\vec F$ across $S$ is

$\displaystyle\iint_S\vec F(x,y,z)\cdot\mathrm d\vec S=\int_0^1\int_0^1\vec F(x(u,v),y(u,v),z(u,v))\cdot(\vec s_v\times\vec s_u)\,\mathrm du\,\mathrm dv$

$=\displaystyle\int_0^1\int_0^1(6-6v,2v-2uv,-8+6v+4uv)\cdot(20v,8v,4v)\,\mathrm du\,\mathrm dv$

$=\displaystyle8\int_0^1\int_0^1(11v-10v^2)\,\mathrm du\,\mathrm dv=\boxed{\frac{52}3}$

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4 years ago

Scientists use ____________________, or powers of ten, to write very large or very small numbers in shorter form.

lbvjy [14]

Scientific notation is writing numbers as a product of a power of 10 to shorten them.

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3 years ago

A location; the place where two lines cross or intersect

Vika [28.1K]

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3 years ago