2 years ago

Which rational expression has a value of 0 when x = –2?

Mathematics

1 answer:

irakobra [83]2 years ago

6 0

-3x+6/8x-9 is the correct response ( I believe )

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Determine whether or not the vector field is conservative. if it is, find a function f such that f = ∇f. if the vector field is

amm1812

$\dfrac{\partial f}{\partial x}=3y^2z^3\implies f(x,y,z)=3xy^2z^3+g(y,z)$

$\dfrac{\partial f}{\partial y}=6xyz^3+\dfrac{\partial g}{\partial y}=6xyz^3$
$\implies\dfrac{\partial g}{\partial y}=0\implies g(y,z)=h(z)$

$\dfrac{\partial f}{\partial z}=9xy^2z^2+\dfrac{\mathrm dh}{\mathrm dz}=9xy^2z^2$
$\implies\dfrac{\mathrm dh}{\mathrm dz}=0\implies h(z)=C$

$\implies f(x,y,z)=3xy^2z^3+C$

The potential function exists, so $\mathbf f$ is indeed conservative.

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4 years ago

Brenda observes that the keyboard and the screen of an open laptop lie on two different planes. In how many lines do the planes

Lerok [7]

Let's assume the laptop is opened at 90 degrees (this is done for the sake of simplicity, is actually irrelevant) then each plane would be analogous to the 'x' and 'y' planes you see in a Cartesian Plane, which only intersect at one point called the Origin. Any two lines with different slopes will intersect only one time (if they're parallel they have the same slope)

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3 years ago

I need a lot of help with this problem lol. I need help finding the mean, median, mode, and range for the numbers .06, 1.10, .75

son4ous [18]

Answer:

mean = 0.76

median = 0.75

range = 1.79

Step-by-step explanation:

mean = sum/no of items

for media they need to be sorted: 0.05,0.06,0.75,1.10,1.84

median is the middle item, so 0.75

range = largest item - smallest item = 1.84 - 0.05 = 1.79

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3 years ago

PLS HELP BRAINLIEST !!!! BE SERIOUS PLS <br><br> dont want to report anyone :((

4vir4ik [10]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

1) You buy 4 shirts that cost 19.76. How much does all 4 shirts cost before tax

antiseptic1488 [7]

Easy, 4 multiplied by 19.76 is 79.04
Have a FANTASTIC rest of your day

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3 years ago