3 years ago

Help with this question, please ASAP!! I need help!!

Mathematics

1 answer:

SashulF [63]3 years ago

6 0

i did this before the answer is choice B

I hope this helps :D

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Quick please I really need this

Kipish [7]

Answer:

y = 39

Step-by-step explanation:

550 x $\pi$ = $\pi$ $r^{2}$ x 11 + y

550 x $\frac{7}{22}$ = $\frac{7}{22}$ x 11 x 11 + y

550 x $\frac{7}{22}$ x $\frac{22}{7}$ = 11 x 11 + y

550 = 11 x 11 + y

$\frac{550}{11}$ = $\frac{11}{11}$ x 11 + y

50 = 11 + y

50 - 11 = y

39 = y

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3 years ago

Find the work done by force dield f(x,y)=x^2i+ye^xj on a particle that moves along parabola x=y^2+1 from(1,0) to (2,1)

NemiM [27]

Call the parabola $P$ , parameterized by $\mathbf r(y)=\langle y^2+1,y\rangle$ with $0\le y\le 1\rangle$ . Then the work done by $\mathbf f(x,y)$ along $P$ is

$\displaystyle\int_P\mathbf f(x,y)\cdot\mathrm d\mathbf r=\int_{y=0}^{y=1}\mathbf f(x(y),y)\cdot\dfrac{\mathrm d\mathbf r(y)}{\mathrm dy}\,\mathrm dy$
$=\displaystyle\int_0^1\langle(y^2+1)^2,ye^{y^2+1}\rangle\cdot\langle2y,1\rangle\,\mathrm dy$
$=\displaystyle\int_0^1(2y^5+4y^3+2y+ye^{y^2+1})\,\mathrm dy=\frac73-\frac e2+\frac{e^2}2$

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4 years ago

List three ways geography influences what kinds of work people do.

cluponka [151]

Where there are mountains there are sherpas, where there are oceans there are fisherman, and where there are caves there are explorers

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3 years ago

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Help please <br> Hurry!!!!

Alex787 [66]

C I know I took test

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