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2 years ago

Hello, please answer the question, please show work

Mathematics

1 answer:

worty [1.4K]2 years ago

7 0

3/8 is bigger than 1/5

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Convert 46,500 scientific notation

Shkiper50 [21]

46500....ok...pay attention....put a decimal behind the first number 4.6500 ....now start counting all the numbers to the right of the decimal...there are 4 numbers.....so ur answer is 4.65 x 10^4

8 0

3 years ago

MATH HELP!!!! ASAP!!! PLSSSSS

nikklg [1K]

Y=140-5x
x will be the minutes so whatever minute you put, you multiply it by 5 the you subtract 140 with whatever you have and there’s your answer

3 0

2 years ago

Use Stokes' Theorem to evaluate C F · dr where C is oriented counterclockwise as viewed from above. F(x, y, z) = 2yi + xzj + (x

Lady_Fox [76]

By Stokes' theorem, the line integral of $\vec F$ over $C$ is given by the surface integral of the curl of $\vec F$ over $S$ , where $S$ is the region of intersection of the plane $z=y+6$ and the cylinder $x^2+y^2=1$ with $S$ having positive/upward orientation.

Parameterize $S$ by

$\vec s(u,v)=u\cos v\,\vec\imath+u\sin v\,\vec\jmath+(u\sin v+6)\,\vec k$

with $0\le u\le1$ and $0\le v\le2\pi$ .

Take the normal vector to $S$ to be

$\vec s_u\times\vec s_v=-u\,\vec\jmath+u\,\vec k$

The curl of $\vec F$ is

$\nabla\times\vec F(x,y,z)=(1-x)\,\vec\imath-\vec\jmath+(z-2)\,\vec k$

Then the line integral is equivalent to

$\displaystyle\int_C\vec F\cdot\mathrm d\vec r=\iint_S(\nabla\times\vec F)\cdot\mathrm d\vec S$

$=\displaystyle\int_0^{2\pi}\int_0^1\bigg((1-u\cos v)\,\vec\imath-\vec\jmath+(u\sin v+4)\,\vec k\bigg)\cdot\bigg(-u\,\vec\jmath+u\,\vec k\bigg)\,\mathrm du\,\mathrm dv$

$=\displaystyle\int_0^{2\pi}\int_0^1(5u+u^2\sin v)\,\mathrm du\,\mathrm dv=\boxed{5\pi}$

4 0

3 years ago

Cups by the water cooler are in the shape of a cone. The height is 15 cm and the diameter is 7.6 cm.

dangina [55]

Answer:

226.7 cm³

Step-by-step explanation:

The cone volume formula is V = (1/3)(base area)(height).

Here that comes out to V = (1/3)(pi)(3.8 cm)^2·15 cm, or 226.7 cm³

3 0

2 years ago

If 4x-3<32, Which of the following are solutions: 26/3, 9.1, 20, or -6?

ValentinkaMS [17]

The answer is :
$4x - 3 < 32 \\ 4 x < 32 + 3 \\ 4 x < 35 \\ x < \frac{35}{4} \\$
$x < 8.75$
and the only number among the choices that is less than 8.75 is -6
hope it's true

6 0

3 years ago