# Posts by Kristina

Total # Posts: 225

**3rd grade**

There are 33 students in the band. There are 6 more fifth-grade students than third-grade students. There are an equal number of third- and fourth-grade students. How many third-grade students are in the band?

**Medical Billing and Coding**

I have to do a research paper on Lupus. I need help with an introduction paragraph. ( 3-5 sentences) and a conclusion paragraph.

**N/A-General Question**

Do you say by hard or by Heart??

**Math**

If a daily dosage of drug is 0.2 mg per kg of body weight how much should a 100 lb person take?

**Math**

If 8/3 = 3/x then x = ? Thanks in advance

**Math**

A car travelling at 25 km per hour and gets 5 km per litre of gasoline, how long can the car travel on 20 litres of gasoline?

**Statistics**

What is y x u= -21

**radical math**

radical .01X to the 4 y to the 2

**Maths probability**

999:1000 i think IM NOT SURE tho... sorry

**math**

need help again mutliply x(x+1)(x-1) and factor completely 6y^2-2yz and 8g^2j-12g^3hj thanks guys I appreciate it.

**math**

I must simplify this equation and am having a hard time (5+2a+3a)-(a2+a-6) I also would like to know if you could help me with this onex(4x2+3x-5)-2(4-x2) this is also simplifing. I have a really hard time with these, thank you

**math**

how do you factor 18c^4-9c^2+7c ?

**Business**

Consider a local business whose services you frequently use. What are the main components of this company's business model? Using Figure 1.2 on p. 11 of your text as a guide, describe the three components of the business system that comprise the local business you selected...

**social studies**

I need some examples of cruelty to creation for a school project

**Thermodynamics**

The molar enthalpy of formation of water vapor is -241.82 kJ/mol at 298 K. Calculate the molar enthalpies of formation of water vapor and of liquid water at 100 C and at -0.1 C (four values).

**CHEM**

Calculate the molar solubility of gold(I) chloride (Ksp= 2.0 x 10^-13) in .10 M NaCN. The complex ion formed is [Au(CN)2]- with Kf= 2.0 x 10^38. Ignore any other competing equilibrium systems. I'm having trouble writing an equation to start off with. First, I had written ...

**Chemistry**

Consider the reaction Zn(OH)2(s) + 2CN-(aq) <--> Zn(CN)2(s) + 2OH-(aq) a) Calculate K for the reaction. (Ksp Zn(CN)2= 8.0 x 10^-12) b) Will Zn(CN)2 precipitate if NaCN is added to a saturated Zn(OH)2 solution? I tried splitting this into two equations: Zn(OH)2(s)<--&...

**Physics**

By how much does the H20 pressure exceed atmospheric pressure at 3 meters below the surface of a pool with fresh H20. I don't know what equation to use. You have to figure the weight of a column of water of some height h, and horizontal area A. Weight= mg= density*volume*g...

**physics**

What would be the final temp when 100 kg of 0 degrees Celcius cold water is mixed with 60 kg of 35 degrees warm water? Ans is in degrees Celcius. The sum of the heats gained is zero (remember one will lose heat, so have a negative heat gained). Heatgained by cold water + heat ...

**legal studies**

how in practice the operation of local court differs from that of others??? I have a judge here in our local district court who drives me mad with his innane dress code for men. I think he has a fixation on ancient times. I wonder sometimes if he would rather be addressed as ...

**Physics**

In the old days, on a cold winter night it was common to bring a hot object to bed with you. Which would be better to keep you warm through the cold night - a 10 kg iron brick or a 10 kg jug of hot water at the same temperature? 10 kg iron brick 10 kg jug of hot water WHY?!!

**none**

turn polar bears white And I will make you cry. I make guys have to pee And girls comb their hair. I make celebrities look stupid And normal people look like celebrities. I turn pancakes brown And make your champane bubble. If you sqeeze me, I'll pop. If you look at me, ...

**AP U.S. History 1920's immigration**

who were the immigrants in the 1920's

**Physics**

yes

**orientalism of muslim and arab american**

UOP~It makes me laugh that this question has been a problem for years. Even after reading the informaiton in the text, there are additional questions that need to be answered and is difficult to find anything else on this topic.