Science & Mathematics

math questions.please help.reward to best answer.?

Asked By: Anonymous
1. -√243x^8y^5 2. (2√3+3√2) (3√2-√2) 3. √13+√52-√117 4. 3√-5(√-3+4√-5)
1 Answer(s) · 12 years ago

What's 20% off of $8.29?

Asked By: Jackie S
Don't be an a`ss when answering. I don't mean to come off as rude but I don't like how some of you leave smart a`ss comments.
10 Answer(s) · 12 years ago

1 Drop of 20% potassium chromate solution is added to 10 drops of a urine specimen. The specimen turns brown?

Asked By: Anonymous
after adding 5 drops of 2.9% silver nitrate solution. What's [NaCl ] concentration in urine? if total specimen volume was 50 ml what's total amount of NaCl in the sample. Please provide an explanation I want understand this stuff.
1 Answer(s) · 13 years ago

HELP, Statistics help needed, greatly appreciate it, thanks ?

Asked By: Anonymous
There are four sales representatives in the elliptical trainer department of the Fitness Factory exercise equipment store. The number of elliptical trainers each has sold in the past two weeks can be seen below in Table 1. For the following questions assume that sample sizes are 2. Table 1: Elliptical trainers sold by Employees of the Fitness Factory Sales Representative Elliptical trainers Sold Josh 22 Irlene 20 Abigail 26 Aida 25 For full marks your answer should be accurate to at least two decimal places. The marking allows the use of the finite population correction factor, and will provide appropriate feedback if the student did make use of it. Calculate the following: - The population mean - The population standard deviation - Standard deviation of sampling distribution
1 Answer(s) · 12 years ago

what would be the best time (C.S.T.) to see the full moon eclipse on 3/3/07?

Asked By: tomatoheadslj
what would be the best time (C.S.T.) to see the full moon eclipse on 3/3/07?
3 Answer(s) · 14 years ago

budding and regeneration?

Asked By: Spacetime
wat is the difference between budding and regeneration? answer plz ASAP ps: i got a test tomorrow about it
2 Answer(s) · 13 years ago

my granddaughter would like to know, what dinosaur fossils, if any, were ever found in pennsylvania??

Asked By: old time racer
my granddaughter would like to know, what dinosaur fossils, if any, were ever found in pennsylvania??
1 Answer(s) · 14 years ago

How do I integrate (1-xe^x) / x?

Asked By: foxhound_28
How do I integrate (1-xe^x) / x?
1 Answer(s) · 12 years ago

Molarity problem!! chemistry help!!?

Asked By: Anonymous
Can anyone show me how to do this?? 75.0 g of an AgNO3 solution reacts with enough Cu to produce .250g of Ag by single replacement. What is the molarity of the initial AgNO3 solution if Cu(NO3)2 is the other product?
1 Answer(s) · 14 years ago