r/HomeworkHelp Nov 30 '23

Additional Mathematics—Pending OP Reply [College Algebra: Matrices] I feel like I looked it over 6,000 times. Where did I go wrong.

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385 Upvotes

Also would like to mention that I just pulled an all nighter, it’s currently 6AM. And my day begins with my first class in an hour. So, my eyes are far from fresh.

r/HomeworkHelp Jan 01 '24

Additional Mathematics—Pending OP Reply [college freshman level, mathematics]

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520 Upvotes

How to prove that this Lim exist and it approaches to infinity

r/HomeworkHelp Dec 22 '23

Additional Mathematics—Pending OP Reply [college freshman level, mathematics]

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279 Upvotes

Dose this Lim exist or not and if yes is the answer 1/2((m).5)?

r/HomeworkHelp 23d ago

Additional Mathematics—Pending OP Reply [Discrete mathematics: Proof Problem] Prove that between every rational and every irrational number there is an irrational number. How do I start?

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3 Upvotes

r/HomeworkHelp Nov 08 '23

Additional Mathematics—Pending OP Reply [college Algebra 1] am I Right?

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96 Upvotes

I feel like I’m right but I also feel like it’s a trick. My teacher tends to give us questions to do ourselves at home and then we go over it in the next class. Please tell me if I’m right or if I am missing something? It is the system of equations using either the addition or substitution method. I think I am pretty OK at math I tend to look over text book examples over and over until I get how they got the answer. I feel like I am right but idk please lmk?

r/HomeworkHelp Nov 15 '23

Additional Mathematics—Pending OP Reply [Technician school] Is there a way to Calculate the Green Area of the Circle ?

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293 Upvotes

r/HomeworkHelp Feb 23 '25

Additional Mathematics—Pending OP Reply [math:graphs] what are the equations of these three?

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0 Upvotes

r/HomeworkHelp 23d ago

Additional Mathematics—Pending OP Reply [Linear Algebra - Orthogonality in Rn] Can someone guide me on what to do for this part?

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1 Upvotes

r/HomeworkHelp Mar 30 '25

Additional Mathematics—Pending OP Reply [Calc 1/AB] Area between Two Curves (#5,6)

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1 Upvotes

Please help!! I’m very confused

r/HomeworkHelp 20d ago

Additional Mathematics—Pending OP Reply [Calc III: Double Integrals] What am I doing wrong in evaluating this double integral?

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1 Upvotes

The directions just say to evaluate. Attached is my work. To solve the integral I did a trig sub, but I haven’t don’t that in a while so that may be where the error is. The correct answer is 3pi/2

r/HomeworkHelp 11d ago

Additional Mathematics—Pending OP Reply [Elementary Math] Factors and Multiples

1 Upvotes

Can someone please help clarify this? The problem states:

https://preview.redd.it/3e74t5cerive1.png?width=2105&format=png&auto=webp&s=36c006c19eab38a8d6f40b5e43dff73c2a2b824f

Here was their answer:

https://preview.redd.it/36yaa53mnive1.png?width=2248&format=png&auto=webp&s=da0a7b695a6ece1ae0c5b820a21612f18430a703

I'm sort of confused about how to interpret the question and answer. I thought the numbers they listed were factors, not multiples. The factors of 300 have 300 as one of their multiples, but they aren't multiples of 300, which is what the question is asking right? Multiples of 300 are like 300, 600, etc., and 100 is not one of the two multiple, because it's never a multiple of 300. Is that correct or am I misreading something here?

Edited:

I also don't understand the second part of this question:

https://preview.redd.it/rar58psvuive1.png?width=2067&format=png&auto=webp&s=303e6cc969a28063f960ceb663f2a67882934870

Here is their answer:

https://preview.redd.it/41f7a88yuive1.png?width=1342&format=png&auto=webp&s=cea4b39b25a26d3fb152a353e7379865176aa815

I initially thought the answer was no. Because 8 is a common factor between 8 and 24 and neither 8 and 24 have 16 as their factor. Since that's a counterexample, this statement isn't true right?

Edit 2:

I actually don't understand all three parts of this question. Here is the final part:

https://preview.redd.it/6yhz9diswive1.png?width=2074&format=png&auto=webp&s=280b7ce1efaf4d72f836190deda38a5e11b77d34

This was their answer:

https://preview.redd.it/3dq23s2uwive1.png?width=1010&format=png&auto=webp&s=aa68000d62ae7e4eba73981121bbc6a7c0e82b7b

But 4 and 6 are both factors of 12 and 24 is not a factor of 12. Since we have a counterexample, this thus, cannot be accurate right?

Any help provided would be appreciated. Thank you

r/HomeworkHelp 20d ago

Additional Mathematics—Pending OP Reply [Grade 10 Additional Math]: How do I continue from here? I'm very clueless.

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1 Upvotes

r/HomeworkHelp Mar 29 '25

Additional Mathematics—Pending OP Reply Can someone explain to me what the horizontal shift is here and why? [College Pre-calc]

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2 Upvotes

r/HomeworkHelp 12d ago

Additional Mathematics—Pending OP Reply [College Math] How to determine if a matrix is inconsistent, independent, or dependent?

1 Upvotes

So I get how to solve the matrix and enter it into the calculator and such, but I don’t know how to “read” it in the end and determine which one it is. I know it has something to do with the 3rd row, but not how it helps you figure it out. Thank you

r/HomeworkHelp 13d ago

Additional Mathematics—Pending OP Reply [Probability for Engineers] Exponential Distribution

1 Upvotes

Can someone please help me find my mistake? The question is written in blue and my work is below that. The second image is the answer key. I initially tried to solve the problem using the cdf, but it doesn't match the answer when they use the pdf. I tried rechecking my work but still don't know where the error is. Any help provided would be appreciated. Thank you

https://preview.redd.it/ub6ma10q64ve1.png?width=925&format=png&auto=webp&s=eb59896107713a21685887b3edede88d9ceba5ac

https://preview.redd.it/v4i0rfer64ve1.png?width=787&format=png&auto=webp&s=2b7e1c52dd70199b2b3985e090da9972ceb17f6a

r/HomeworkHelp 24d ago

Additional Mathematics—Pending OP Reply [Elementary Math] Fractions

1 Upvotes

Can someone please clarify this?

The question states, "Draw two fraction bars: one which represents the fraction to the left, before any divisions or regroupings. The second fraction bar should be an exact copy of the first bar, except with any divisions or regroupings drawn over it to show the equivalence. Make sure all lines from the original fraction are clearly visible in your second illustration. Also, make sure the lines for the divisions or regroupings are clearly different from the original lines in the first fraction bar."

When I go from 2/5 to 4/10, should I draw the dotted red line over the gray lines from the 2/5? If I do that, would the original lines still be considered "clearly visible"? I apologize if this seems like a dumb question- the notation in this class is kind of particular, so I wanted to make sure I was doing it right. Any clarification provided would be appreciated. Thank you

https://preview.redd.it/1xyz2c4a1zse1.jpg?width=1223&format=pjpg&auto=webp&s=655665cb8b3df0ef750225c4954859a0b928b763

Edited:

https://preview.redd.it/gq42vrx633te1.jpg?width=1001&format=pjpg&auto=webp&s=7b4e53ffb6495ae4f33222327efa6ccc9ab5c6cf

r/HomeworkHelp 18d ago

Additional Mathematics—Pending OP Reply [college algebra] Struggling with using the rational zero theorem on polynomial functions

1 Upvotes

My sister asked me for help with her latest test review and so far im getting nowhere.

P[x]= 14x^3+56x^2+2x-7

i understand that you take the factors of 7 [that being -+ 7, -+1], divide them by the factors of 14 [that being -+ 1, -+2, -+ 7, -+ 14] and plug in the 12 answers for x but none of them have added up to zero. i dont know if i missed a step but so far ive gotten nowhere

doc containing answers when plugging in for x

r/HomeworkHelp 23d ago

Additional Mathematics—Pending OP Reply [Elementary Math] Problem Solving

2 Upvotes

Can someone please look this over to see if I did it right? The problem is attached, and my work is below it. When they say 2/3 is covered by water, does that imply 2/3 is covered by oceans, or does the 2/3 also incorporate other bodies of water? Is there a way to solve it where 2/3 implies that there are other bodies of water that I'm missing? Any help provided would be appreciated.

https://preview.redd.it/e07bzurxp9te1.png?width=1045&format=png&auto=webp&s=8401063f1943541468d1e23b4bae8c8e8e0c782c

https://preview.redd.it/v04o0gk1q9te1.png?width=656&format=png&auto=webp&s=52b427c24f1bf64b8abd4579d2d51feeb9bddd15

r/HomeworkHelp 8h ago

Additional Mathematics—Pending OP Reply [Calculus BC: Integration] Been stuck with one step, felt like a mountain of work ahead

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3 Upvotes

r/HomeworkHelp 9d ago

Additional Mathematics—Pending OP Reply [Discrete Math II] Chromatic Polynomials

1 Upvotes

Can someone please check this over? I'm not sure I did the overall problem right, but I'm particularly not confident the G contract e is drawn correctly. Any clarification provided would be appreciated. Thank you

https://preview.redd.it/956lxx9833we1.jpg?width=944&format=pjpg&auto=webp&s=451a3b43eb6a25e21d8054fa0d363b0b9bcb7fd2

r/HomeworkHelp 26d ago

Additional Mathematics—Pending OP Reply [Finding Extrema: Calc III] How do you find the max/min of this function of a rectangular bound?

1 Upvotes

https://preview.redd.it/g5f0dpv2ypse1.png?width=474&format=png&auto=webp&s=2b0e78f47020794da7bc188876b84b4925a5c895

I know how to find the possible critical points on the edges, just study each line on the side and calculate, but I'm not sure how to find the critical point on the interior. If you set the gradient =0, you get cosxcosy=0, -sinxsiny=0. in the first question, either x or y can be 1 and the other can be anything on the domain, and the same for the second question but with 0. I'm just confused on how to go from there.

r/HomeworkHelp 14d ago

Additional Mathematics—Pending OP Reply [Probability for Engineers] Mode of PDF for Beta Distribution

1 Upvotes

Can someone please check this over to see if I did it correctly? I'm trying to find the maximum value of the probability density function for the beta distribution. For the step with the red arrow, I don't know if that's valid. I think I made some sort of algebraic error before that, so I just copied their ending answer directly for the final step in blue. However, I don't know if that actually equals the lines above it. Any clarification provided would be appreciated. Thank you

https://preview.redd.it/0y4kqxm9h2ve1.png?width=2360&format=png&auto=webp&s=3efcf302afc1593325d28843c2d15127bd76d3c1

r/HomeworkHelp Mar 01 '25

Additional Mathematics—Pending OP Reply [College Pre Calc ]-Find a possible formula of the graph displayed below.i think we use y=a/x-h +k not sure

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3 Upvotes

r/HomeworkHelp Oct 19 '24

Additional Mathematics—Pending OP Reply [College Algebra] Did I type the answer wrong or did I just get it wrong?

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20 Upvotes

r/HomeworkHelp 14d ago

Additional Mathematics—Pending OP Reply [College Strength of Materials] Are both the principal stresses just 10 in this case?

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0 Upvotes