3 years ago

Question 14(Multiple Choice Worth 1 points)

Mathematics

1 answer:

Alex_Xolod [135]3 years ago

8 0

Answer:

I think the third one.

Step-by-step explanation:

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If the square of a positive integer is added to 2 times the integer, the result is 195 . Find the integer

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3 years ago

X/8=8/64 Solve the proportion for x.

Alexxandr [17]

Answer: x = 1

Step-by-step explanation:

Step 1: Cross-multiply.

x/8 = 8/64

x*(64)=(8)*(8)

64x=64

Step 2: Divide both sides by 64.

64x/64 = 64/64

$\frac{64x}{64} =\frac{64}{64} \\$

Therefor, the answer is x = 1

* Hopefully this helps:) Mark me the brainliest:)!!

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Read 2 more answers

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

djyliett [7]

We're looking for $f(x,y,z)$ such that $\nabla f(x,y,z)=\vec F(x,y,z)$ , which requires

$\dfrac{\partial f}{\partial x}=xyz^2$

$\dfrac{\partial f}{\partial y}=x^9yz^2$

$\dfrac{\partial f}{\partial z}=x^9y^2z$

Integrating both sides of the first PDE wrt $x$ gives

$f(x,y,z)=\dfrac12x^2yz^2+g(y,z)$

Differenting this wrt $y$ gives

$\dfrac{\partial f}{\partial y}=x^9yz^2=\dfrac12x^2z^2+\dfrac{\partial g}{\partial y}$

$\implies\dfrac{\partial g}{\partial y}=\dfrac12x^2z^2(2x^7y-1)$

but we're assuming $g(y,z)$ is a function that doesn't depend on $x$ , which is contradicted by this result, and so there is no such $f$ and $\vec F$ is not conservative.

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3 years ago