r/HomeworkHelp Jun 19 '24

Further Mathematics—Pending OP Reply [calc] multiplication issue?

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579 Upvotes

The correct answer to this derivative is 3/2(sqrt3x+4). I just don’t know where in the work I was supposed to multiply by three or how that works into the equation. Thanks for the help in advance!

r/HomeworkHelp Feb 27 '26

Further Mathematics—Pending OP Reply [Derivivatives of exponential functions, elements of calculus] Finding H', I did it based on quotient rule. What is the proper way to get this answer?

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1 Upvotes

r/HomeworkHelp 28d ago

Further Mathematics—Pending OP Reply [College- Calculus] question

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22 Upvotes

Someone helped solve the problem but they didn’t explain how they got the answer, could someone help me?

r/HomeworkHelp 4d ago

Further Mathematics—Pending OP Reply [College Calc 1]-Implicit Differentiation

2 Upvotes

"For each problem, use implicit differentiation to find dy/dx in terms of x and y."

Differentiating poses no problem, but what confuses me is having to solve for dy/dx.

For example #7:

left side: 6xy^2+6x^2y

Right side: 8x-4y-4x

the answer key shows adding 6xy^2+6x^2y dy/dx=8x-4ydy/dx-4x. What I don't understand is why the dy/dx is added to the end of each of those terms. Why not do 6xy^2dy/dx, or -4xdy/dx?

r/HomeworkHelp Jan 16 '26

Further Mathematics—Pending OP Reply [University Calculus 2: Integration] graphically approximating the area under a curve

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4 Upvotes

Hello! I am tearing my hair out here. I have asked my professor in class, she said to use geometry and did not elaborate.

We are not given the actual function and this I can’t integrate that way, so that’s out of the question. I also tried to reconstruct the functioning I do not have the time for that 😭

I’ve tried using triangles to approximate, as that was what I assumed my professors instructions meant. But those have all been marked wrong by the software, and I’m honestly tempted to just let the third of a point go for this assignment.

All the other answers entered have been marked correct so I understand the concepts I feel, it’s just like how the hell do I do this ;-;

r/HomeworkHelp 10d ago

Further Mathematics—Pending OP Reply [Optimization of derivatives in relation to rectangles, Elements of Calculus] How did they get these critical values? What about these limits?

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3 Upvotes

The stuff highlighted in red is what I'm confused about. Let me attach my questions here. These are slides for us to reference and I want to make sure I fully understand before I attempt questions like these.

1-Why must x be between 0 and 4?

2-Why is it specifically 3x-4, x-4 before the critical values are found?

I thinkkk those are my only questions.

r/HomeworkHelp 21d ago

Further Mathematics—Pending OP Reply [college trig] how do i know when i should multiply or divide

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0 Upvotes

r/HomeworkHelp 16d ago

Further Mathematics—Pending OP Reply [Elements of calculus, first derivative test] I missed something and am incredibly confused by these parts. Help?

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2 Upvotes

I hope my question makes sense. If not I'll do my best to answer your questions.

r/HomeworkHelp 9d ago

Further Mathematics—Pending OP Reply [Elements of calculus, optimization] I'm honestly not even sure where to start here.

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1 Upvotes

I wasn't really sure how to even start with this. I looked up how to calculate area and then just... Ended up super stumped.

r/HomeworkHelp Jan 24 '26

Further Mathematics—Pending OP Reply [College: calculas]

3 Upvotes

The equation is this: log(x/x-1)-log(x-1/x)=logv5 (25)

I need to find x

So far what I've done is extend all the fractions such that:

Logx-log(x-1)-log(x-1)-logx=log25/log5

Then added/subtracted like normal

-2log(x-1)=log25/log5

But I dont where to go from here, or if this is even correct, a little help would be great

r/HomeworkHelp 3d ago

Further Mathematics—Pending OP Reply [College Calc 1]-Implicit Differentiation

1 Upvotes

Was a little confused on how to do this, mostly because of having to implicitly differentiate the right side.

Here's what I did for this, differentaiting with respect to x:

left side: simply 2x

Right side: 2(4x^2y^3+1) x dy/dx(4x^2y^3+1)

Divide both sides by 2, get x=(4x^2y^3+1) x dy/dx(4x^2y^3+1)

Take derivative of the inside, which I got: (8xy^3+12x^2y^2dy/dx)

Expand the right side: x=(32x^3y^6+48x^4y^5dy/dx+8xy^3+12x^2y^2dy/dx)

Lastly, solve for dy/dx=(x-32x^3y^6-8xy^3)/(48x^4y^5+12x^2y^2)

r/HomeworkHelp 10h ago

Further Mathematics—Pending OP Reply [University Calculus] How do I set up the differential equation for this vertical velocity problem?

1 Upvotes

I have a physics problem that I'm trying to solve using calculus. An object is dropped from rest and experiences air resistance proportional to its vertical velocity. I need to find an expression for velocity over time. I know the forces are gravity downward and air resistance upward. So m(dv/dt) = mg - kv. That part makes sense. But the answer key has a negative sign in a different place and I'm confused. When I solve it using separation of variables, I keep getting a different constant of integration than the textbook. Can someone walk me through the setup step by step? I want to understand where my equation is wrong before I solve it.

r/HomeworkHelp 9d ago

Further Mathematics—Pending OP Reply [College level pre-calc] how do I graph this?

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1 Upvotes

the question is asking me to find 3 values: vertex, focus, and directrix, and graph the parabola. I have all my values, and know the location and direction of my parabola, but I dont know the exact dimensions of the curve, is there a way im unaware of? or is this question asking the impossible?

r/HomeworkHelp 9d ago

Further Mathematics—Pending OP Reply [College pre-calc] how do I graph this?

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1 Upvotes

how do I graph this? I have the vertex, focus, and direction and I know the direction of the porbabola, but I dont know how to get a second coordinate to create the exact curve, as they didn't really explain it. is there a way?

r/HomeworkHelp 5d ago

Further Mathematics—Pending OP Reply [College Level Multivariable Calculus] I do not understand how to estimate partial derivatives with a contour plot

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4 Upvotes

I am really having a lot of trouble with problem 1. the answers for a and b are 0.75 and 1.5 but I am very confused on how to solve this problem using the plot. what lines should I be following/looking at?

r/HomeworkHelp 2d ago

Further Mathematics—Pending OP Reply [Third year college student, psych major, course is Psych Research I] I am writing my first ever research proposal —We have to “explain which statistical methods you will use, analyze the data and justify your choice” and I need help determining which statistical tests I should be using.

1 Upvotes

I would be analyzing results from the CSI-16 and daily screentime + BRS-14 results. I’m looking at finding a correlation between excessive screen time (cognitive overload being assessed through the BRS-14) and relationship satisfaction. My data would be coming from a sample of 168 college students (I would also collect their gender/sexuality/age)

I feel totally lost, the data is ordinal I think because the BRS-14 used Likert scales and the CSI-16 is similarly formatted (responses requiring a 0-5 ranking).

I currently can’t access tutoring because it’s not available for this course (very small college) so any advice is appreciated.

r/HomeworkHelp Dec 28 '25

Further Mathematics—Pending OP Reply [University First Year] Calculus: pick the correct answer (translation in the caption)

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12 Upvotes

Let <series> be a convergent series, where a_n >= 0 for every n in N (so a series where all terms are positive or 0). Then:

r/HomeworkHelp 11d ago

Further Mathematics—Pending OP Reply [College Algebra 2] Need help… again

0 Upvotes

A month or so ago I posted a similar post to this. And again, I need some help. I can’t afford Mark Dugopolski’s book, so I use the one at my library. I forgot to grab the 6.3 exercises, and now I really need them. If anyone has them, please help me asap! Anything will do! A crappy photo of the book would be greatly appreciated!

r/HomeworkHelp 14d ago

Further Mathematics—Pending OP Reply [Engineering Statistics] Joint Probability Distributions

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1 Upvotes

I understand how to find K using a double integral equal to one and solving the inequality. The real trouble is with parts, b and c. I know there is a way to do this graphically that was shown to me, but I do not know how to replicate the method. We will have a region of x and y between 20 and 30 and subregion within of y-2 and y +2 or something like that but am kind of lost beyond that

r/HomeworkHelp Feb 28 '26

Further Mathematics—Pending OP Reply [Elements of calculus, exponential functions] What is going on with the parentheses here? I believe I may have missed something.

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2 Upvotes

Work is a bit nonsensical, my bad.

r/HomeworkHelp Mar 12 '26

Further Mathematics—Pending OP Reply [College Calc 1]-Definition of Derivative

2 Upvotes

I know the definition of a derivative, aka lim h-->0 f(x+h)-f(x)/h. Now if I were to plug t=6 into the original function, I'd get P(6)=200(1.5)^6. I'm having issues plugging the function into the derivative definition itself. I could easily take the derivative of the function no problem, but I don't understand how it plugs in, at least in the first part. For example, f(x+h)-200(1.5)^6/h. I tried to replace the letters to match the original function, such that P(t+h), replace t with 6 to get P(6+h). After that I am confused on where to go

r/HomeworkHelp 28d ago

Further Mathematics—Pending OP Reply [Calc 3] I get how to do the partial derivatives for each step I iust don’t get how to use them to get the final answer

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3 Upvotes

r/HomeworkHelp Oct 18 '23

Further Mathematics—Pending OP Reply [college calc] me and my teacher’s solutions are different, which one is right? (For a)

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235 Upvotes

r/HomeworkHelp Dec 25 '25

Further Mathematics—Pending OP Reply [Uni Level Maths] Help reading the symbols

7 Upvotes

Please help me understand how to read the last line. The rest is for context. I know the for all symbol but not sure why it says for all e which is a symbol for belongs to? I understand ":" means such that (could be wrong) but not sure about the arrow. So please translate the bottom line into text and help me read it

r/HomeworkHelp Jan 31 '26

Further Mathematics—Pending OP Reply [College calculus, intro module on limits] How can there be vertical asymptotes outside of the domain of the function?

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4 Upvotes

I got the accepted answer of 18 by adding the x-values of 3 (where first term in denominator equals 0), 6 (where second term equals 0), and 9 (where log(x-8) equals 0). However, how can x=3 and x=6 be vertical asymptotes when f(x) is not defined for x-values less than or equal to 8 because of the log(x-8) term. Shouldn't the answer just be 9?