3 years ago

Which expression is equivalent to (7x-5) - (3x - 2)

Mathematics

2 answers:

LuckyWell [14K]3 years ago

6 0

Answer:

Step-by-step explanation:

7x - 3x

= -4x

-5 -2

= -7

4x - 7

zalisa [80]3 years ago

6 0

The answer to the problem is c) 4x-7

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sweet [91]

X=(40-25)/.75

X= 15/.75

X= 20

6 0

2 years ago

Use Green's Theorem to calculate the circulation of F =2xyi around the rectangle 0≤x≤8, 0≤y≤3, oriented counterclockwise.

Tamiku [17]

Green's theorem says the circulation of $\vec F$ along the rectangle's border $C$ is equal to the integral of the curl of $\vec F$ over the rectangle's interior $D$ .

Given $\vec F(x,y)=2xy\,\vec\imath$ , its curl is the determinant

$\det\begin{bmatrix}\frac\partial{\partial x}&\frac\partial{\partial y}\\2xy&0\end{bmatrix}=\dfrac{\partial(0)}{\partial x}-\dfrac{\partial(2xy)}{\partial y}=-2x$