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# Polyhymnio

• ### When registering a car in Ohio, is proof of insurance required?

3 AnswersInsurance & Registration5 years ago
• ### Math symbols on Kindle fire?

Does anyone with a Kindle Fire HD know how to make special characters when posting to Yahoo Answers? Any help will be greatly appreciated!

• ### Is there a name for the function you are taking a limit of?

You take the integral of an integrand, take roots of a radicand, add summands and so on. What do you call the function you are taking a limit of? I know it is not the limitand!

• ### Why does the long division algorithm work?

I am having trouble answering the following question. Any help would be greatly appreciated.

Use long division to solve the following problem. How would you explain this algorithm conceptually to a 5th grader? In other words, why does this method work?

For example, 462 ÷ 3

• ### Percent mass after dehydration?

99% of the mass of a watermelon is water. After the watermelon was lying in the sun it dried up some, and now contains only 98% water. By how many percent has the total mass of the watermelon decreased?

Thank you ☺

• ### Why does the long division algorithm work?

I am having trouble answering the following question. Any help would be greatly appreciated.

Use long division to solve the following problem. How would you explain this algorithm conceptually to a 5th grader? In other words, why does this method work?

462 ÷ 3

• ### Jerome swapped the digits of a two digit number?

Jerome swapped the digits of a two digit number. The new number he obtained was 30 less than the original. What was the original number?

I am pretty sure that there is no solution but would like some feedback. Thank you!

• ### General term of the sequence -1/2, 1, -7/8, 10/6...?

Anybody see a pattern?

• ### Special Characters on iPad?

I just got a new iPad and was wondering if there is a way to do special characters for mathematics (radicals,brackets, super scripts, etc.). Any input will be greatly appreciated!

• ### Finding trig functions on TI calculators?

I do not have a TI calculator but am often asked how to find trig functions and inverse trig functions when tutoring online. What keystrokes would I use to find, say, sin(37°) and arcsin(.72)? Thanks in advance!

• ### What is "College Algebra"?

Where I went to college, all Freshman were required to take Calculus, so there was no "College Algebra". What is typically taught in such a course?

• ### Why are so many people posting Chem questions in the Math section?

Most people will just be annoyed and possibly give incorrect answers intentionally! People with a desire to answer Chem questions will come here. These are simple calculations such as moles/mass; nothing requiring the attention of a mathematician; we are happy to look at those. ☺

• ### Why do so many people put "for 10 points"?

All questions are worth 10 points!!

• ### pH of an acetic acid NaOH solution?

What is the pH of a solution containing 25 mL of 0.10M acetic acid after 10 mL of 0.10M NaOH is added? Yeah, this is for homework, but I have about 20 of them and would just like to see one solved. Thanks!

• ### Solubility Product Problem. I am REALLY stuck on this one :(?

What sulfide ion concentration is required to just initiate precipitation of CoS from a solution that is initially 0.10 M in Co++. Ksp for CoS is 4E-21. Assume all sulfide comes from CoS (no common ion effect)

• ### Easy (?) Physics Problem?

Sally applies a horizontal force of 462 N with a rope to drag a wooden crate across a floor with a constant speed. The rope tied to the crate is pulled at an angle of 56.0° and Sally moves the crate 24.5 m. What work is done by the floor through the force of friction between the floor and the crate?