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2 years ago

Which of the following is best used to measure the weight of a 18-wheeler truck

Mathematics

1 answer:

Katen [24]2 years ago

6 0

the answer to this would be tons

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Please helppppooooppppp

klasskru [66]

Answer:

$x \geq -8$ (NUMBER LINE ATTACHED)

Step-by-step explanation:

Hi! Hope this helps, if so please mark me brainliest! :)

6 0

3 years ago

G find the area of the surface over the given region. use a computer algebra system to verify your results. the sphere r(u,v) =

Svetach [21]

Presumably you should be doing this using calculus methods, namely computing the surface integral along $\mathbf r(u,v)$ .

But since $\mathbf r(u,v)$ describes a sphere, we can simply recall that the surface area of a sphere of radius $a$ is $4\pi a^2$ .

In calculus terms, we would first find an expression for the surface element, which is given by

$\displaystyle\iint_S\mathrm dS=\iint_S\left\|\frac{\partial\mathbf r}{\partial u}\times\frac{\partial\mathbf r}{\partial v}\right\|\,\mathrm du\,\mathrm dv$

$\dfrac{\partial\mathbf r}{\partial u}=a\cos u\cos v\,\mathbf i+a\cos u\sin v\,\mathbf j-a\sin u\,\mathbf k$
$\dfrac{\partial\mathbf r}{\partial v}=-a\sin u\sin v\,\mathbf i+a\sin u\cos v\,\mathbf j$
$\implies\dfrac{\partial\mathbf r}{\partial u}\times\dfrac{\partial\mathbf r}{\partial v}=a^2\sin^2u\cos v\,\mathbf i+a^2\sin^2u\sin v\,\mathbf j+a^2\sin u\cos u\,\mathbf k$
$\implies\left\|\dfrac{\partial\mathbf r}{\partial u}\times\dfrac{\partial\mathbf r}{\partial v}\right\|=a^2\sin u$

So the area of the surface is

$\displaystyle\iint_S\mathrm dS=\int_{u=0}^{u=\pi}\int_{v=0}^{v=2\pi}a^2\sin u\,\mathrm dv\,\mathrm du=2\pi a^2\int_{u=0}^{u=\pi}\sin u$
$=-2\pi a^2(\cos\pi-\cos 0)$
$=-2\pi a^2(-1-1)$
$=4\pi a^2$

as expected.

6 0

3 years ago

36^ - 1/2 Wich is equivalent? A -18<br> B -6<br> C- 1/18<br> D- 1/6

STatiana [176]

Answer:

3rd

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

3abc<br> What is the coeficient of c?

romanna [79]

Answer:

Step-by-step explanation:

3 is the coefficient of c as it is a constant, whereas a and b are variables, subject to change.

4 0

2 years ago

A rectangle has a permeter of 64 inches and a length of 22 inches Which equation can you solve to find the width?

Zina [86]

Answer:

64/22 = width

3 0

3 years ago