# teacher

1. ### completing the square, here is what I got this is what my teacher got....

My question is I am unsure where my teacher was able to get the 6 from? Thanks :)
2. ### My Teacher Isn't Believing Me That He Did His Binary Wrong

For the number 356 to binary, I got "101100100" and I used several different online converters to confirm, and did a trick that my teacher taught me awhile back. He used the Windows 10 calculator and the divide method and got "001011010" but with his, it isn't converted properly because the 8th...
3. ### My math teacher cannot solve this

When a school marching band lines up in 4 columns, the last row is not complete. When it lines up in 3 columns, the last row is not complete, but there are 3 more rows. When it lines up in 2 columns, the last row is not complete and there are 5 more rows than there were with 3 columns. The...
4. ### A teacher marked my quiz answer wrong -Help

My teacher marked an answer of mine wrong on a quiz. I did the problem again and came up with the same answer. I was supposed to solve for H, any help is appreciated.
5. ### teacher lookin for help

Hi. I'm a math teacher. I'm looking for a community of math buddies who can share and offer their help. I guess this is the right place!
6. ### Logs - Can anyone be my teacher for this problem? :)

Hi! I solved this problem but Im not sure if its correct. Also, if you come up with a better way of solving it, please be so kind as to teach it to me! The problem and my solution are in the attached thumbnails:rolleyes:
7. ### Trainee maths teacher

Hello, I'm about to start training as a secondary maths teacher in the UK. I have done a Subject Knowledge Enhancement course but I don't have a maths degree, so I'm hoping to get some advice here on how I can continue to develop my knowledge of maths over the coming months and years. I'm...
8. ### Future teacher

Hi, nice to meet you all. I came to this forum to ask the "hard questions", at least hard for me :D. I hope I can help in the near future too, I want to be a math teacher so I'll be looking at the challenging questions from my books and reviewing my math theory to see if something comes up.
9. ### Career Guidance Kettering Buccleuch Academy is hiring a motivated Teacher of Maths in East Midlands.

Nominated for Best School Building in Britain, the brand new Kettering Buccleuch Academy is home to cutting edge technology and impressive facilities which bring education to life for our students. Now under new leadership, we have begun a rapid journey to become beyond Outstanding and our staff...
10. ### 4 probability questions I got from my teacher

Q1: Bill picks turf in a peat bog. In one day he picks an average of 120 kg peat with a variance of 100 kg Â². He receives $6.25 for every kg of peat he picks. He has moreover, a fixed salary of$ 100 per day. How much does Bill earn on average per day? What is the standard deviation...
11. ### Academic Guidance Kettering Buccleuch Academy is now seeking a Maths Teacher

Nominated for Best School Building in Britain, the brand new Kettering Buccleuch Academy is home to cutting edge technology and impressive facilities which bring education to life for our students. Now under new leadership, we have begun a rapid journey to become beyond Outstanding and our staff...
12. ### How should I present this to my teacher?

My teacher asked me to solve this: Find all the solutions z ? ? for the equation z^8 = -1. now I know that i= square -1, so -1 should be i^2? So when I present an answer for this equation... Should I just write "z^8=i^2? Is this the correct answer by the way? Thank you, and thank you to...
13. ### Maths videos from a maths teacher

Hi everyone, I'm a high school teacher from Sydney, Australia. I shoot videos of my classroom lessons for my students as a resource for their revision (or to help them catch up if they ever miss class). Some of them mentioned that I should share these videos with others because they might be...
14. ### My teacher is wrong, RIGHT?

Hi, I had a question marked right, but I think he is wrong... Q: Find the magnitude and direction of the resultant of two vectors |u|=2 |v|=6 and an angle of 140 between them... Using the law of cosines a^2= b^2 + c^2 -2bccosx . it should be 4 + 36 - 24cos140=7.64. I used cos40 in my...
15. ### need help finding a limit problem to stump my teacher

My math teacher said that if we will give him a limit that he wont be able to solve in ten minutes he will give us bonus, so can you PLEASE send me the hardest limit you have ever solved with a solution? I would be grateful if you will! Please help me get a bonus.. :D
16. ### The Rouge Math Teacher

Hey y'all. I'm a Texan, a blogger, a mom, a wife and an employee. Sometimes in that order, but often I try to move them around a bit. I've joined because I want to see what's needed by students of all types of math these days. Until last semester, I taught College Algebra on Saturday mornings...
17. ### My teacher says that...

...the reference angle to t= pi/4 (derived from arctan (1)) is 5pi/4. I don't get how it can be 5pi/4. I get that it should be 4pi/4?? Can someone please explain this?
18. ### Help me prove my teacher wrong!

Ok, maybe i am wrong but i don't think i am. I have been arguing with my teacher for a week and i can't get her to see my side. So i am hoping you guys can settle this for me as it is driving me nuts. Here is the question that was posed in a quiz: I flip a fair coin twice and count the number...
19. ### California math Teacher

I am California math teacher who created a website so my students can get online homework help www.secondteacher.com. It helped my students. Yeah I know this may be considered spam but I made it to help kids. My website teaches order of operations in everyday language directly from textbooks...
20. ### Help! Is my son's teacher wrong?

A rectangular pen has a length 3 feet greater than its width. If both dimensions are increased by 5 feet, which expression gives the resulting increase in area? A) 10x + 40 B) 13x + 40 C) x^2 + 13x + 40 D) x^2 + 10x + 40 My son and I came up with C as the answer but it doesn't explain...