3 years ago

Are ac and be congruent explain?

1 answer:

4 0

AC is a line with length of 7 units, from -7 to 0

BE is a line with length of 6 units, from 0 to 6

Two shapes are congruent if their length are the same, hence AC and BE is not congruent

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Equation B: 3x+2x+6=6x-5 ( does that have one solution, no solution, or many solutions?) and explain why

Hoochie [10]

It has one solution.

please see the attached picture for full solution

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7 0

3 years ago

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Evaluate the surface integral ModifyingBelow Integral from nothing to nothing Integral from nothing to nothing With Upper S f (x

kykrilka [37]

Parameterize $S$ by

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

with $0\le u\le2\pi$ and $0\le v\le\frac\pi2$ . Take a normal vector to $S$ ,

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Then the integral of $f(x,y,z)=x^2+y^2$ over $S$ is

$\displaystyle\iint_Sx^2+y^2\,\mathrm dS=\iint_S\left((6\cos u\sin v)^2+(6\sin u\sin v)^2\right)\left\|\frac{\partial\vec s}{\partial v}\times\frac{\partial\vec s}{\partial u}\right\|\,\mathrm du\,\mathrm dv$