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2 years ago

I don't know what classes I should take for sophomore year . Can someone give me some ideas?

Mathematics

2 answers:

Svetradugi [14.3K]2 years ago

6 0

Take us history and algebra 2

belka [17]2 years ago

4 0

Well, it depends on the school. Do you have a list of the classes?

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olasank [31]

I don’t know how to sorry

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2 years ago

Find the directional derivative of f(x,y,z)=2z2x+y3f(x,y,z)=2z2x+y3 at the point (−1,4,3)(−1,4,3) in the direction of the vector

Feliz [49]

$f(x,y,z)=2z^2x+y^3$

$f$ has gradient

$\nabla f(x,y,z)=2z^2\,\vec\imath+3y^2\,\vec\jmath+4xz\,\vec k$

which at the point (-1, 4, 3) has a value of

$\nabla f(-1,4,3)=18\,\vec\imath+48\,\vec\jmath-12\,\vec k$

I'm not sure what the given direction vector is supposed to be, but my best guess is that it's intended to say $\vec u=15\,\vec\imath+25\,\vec\jmath$ , in which case we have

$\|\vec u\|=\sqrt{15^2+25^2}=5\sqrt{34}$

Then the derivative of $f$ at (-1, 4, 3) in the direction of $\vec u$ is

$D_{\vec u}f(-1,4,3)=\nabla f(-1,4,3)\cdot\dfrac{\vec u}{\|\vec u\|}=\boxed{\dfrac{294}{\sqrt{34}}}$

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2 years ago

For the pair of points, find the slope of the line that passes through both points. (1,1) and (5,7)

zvonat [6]

Answer: 3/2

Step-by-step explanation:

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1 year ago

A rectangular prism measures 225 inches by 315 inches by 2 inch.

Bas_tet [7]

Answer:

No I don't agree with Priya

The reason why I don't agree with Priya is because 25 Inch side blocks are BIGGER than 15 inch side blocks. That means that it will take less amount of 25 inch side blocks to fill up the volume of the rectangular prism rather than 15 inch side blocks.

(I'm sorry, I don't know what was your previous question, so I can't answer that part. If you comment it below, I will do it!)

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1 year ago

MATH HELP ASAP!!! MAKING BRAINLIST

Ulleksa [173]

Answer:

22.86

Step-by-step explanation:

2.54 x 9 will give you the answer.

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2 years ago

Read 2 more answers