Saturday
April 19, 2014

Posts by Emory


Total # Posts: 24

Chemistry
Rank in order of decreasing average molecular speed at 21 degrees celsius: Ne, HBr, SO2, NF3, CO

Chemistry
1. Calculate the number of molecules in a deep breath of air whose volume is 2.15 L at body temperature, 36 degrees Celsius, and a pressure of 740 torr. 2.A fixed quantity of gas at 24 degrees Celsius exhibits a pressure of 740 torr and occupies a volume of 4.42 L. a)Use Boyle...

Geometry
YES THERE IS SO HOW DID YOU WORK OUT YOUR PROBLEM HOW DID YOU CAME UP WITH THAT ANSWER?

Geometry
Well you see in my math work it ask me to use 3.14 for pie. and the answer that I got was one my choices so I'm assuming that I did it correct

Geometry
Ok so can you please check if I did it correct v=pi*r^2*h v=pi*27^2*3=2187+3.14=6867.18 ft^3 and if I round it of to the nearest tenth it will be 6867.3 ft^3

Geometry
CAN SOME ONE JUST HELP ME HOW TO START IT OF PLEASE.. The foundation for a cylindrical water tank is a cylinder 27 ft in diameter and 3 ft high. How many cubic ft of concrete are needed to build the foundation?

Geometry
thank you

Geometry
Consider the experiment of rolling a single die what is the probability of rolling an odd number? I came up with 0.5,even odds as there are 3 odd and 3 even numbers so the prob. is 0.5 Did I do this correct.

Geometry
So by looking at the website that you emailed me it's congruent correct.

Geometry
Which descriptor could be used to characterize three lines that intersect at the corner of a cube: coplanar, cubic, concurrent, or complementary? A) Coplanar B) Cubic C) Concurrent D) Complementary

Geometry
Yes i'm sorry for the misunderstanding

Geometry
ok so can you check my work if I did it correct 12y-7y-5=0 5y-5=0 y=1

Geometry
I don't know how to start this problem and it goes like this 6y2 = 7y - 5? Can you please help me just to start it off

Geometry
So then the answer is 0 because like you mention there is no factor "correct"

Geometry
Oh,I see thank you I have another one for you that I don't know how to start it and it goes like this 6y2 = 7y - 5? Can you please help me just to start it off

Geometry
Well you see that was how I did at first but I was not too sure about it so then I got it right the first time I always get confused with that any tips to remind me next time. Thanks

Geometry
Solve the quadratic equation. 13) x2 - x = 72 A) -8, 9 B) -8, -9 C) 1, 72 D) 8, 9 Can some one please check my answer and let me know if I did it the right way. x2-x-72=0 (x-9)(x-8)=0 so the answer is D 8,9

Geometry
Find the slope of the line through the given points(4, -8) and (5, -8) A)-16/9 B)0 C)-16 D) No slope b

college math
hmm. so I'm assuming it's C then correct!!

Math 156
The systolic blood pressures of the patients at a hospital are normally distributed with a mean of 136 mm Hg and a standard deviation of 13.4 mm Hg. Find the two blood pressures having these properties: the mean is midway between them and 90% of all blood pressures are between...

Elmentary math
Oh, thanks Mrs. Sue that was really helped me out how to explain it to her. Once again thank you very much :)

Elmentary math
Can someone please help me explaim this question to one of my classmates she asked me this question and I don't know what to tell her. Thanks I am having a tough time grasping odds. I get it confused with probability. Can you explain it to me. Sometimes our teacher and our...

Math 156
can some one please help me...

Math 156
I already did the first and third question I just need some one to make it clear to me what he is asking for question 2. Hint anyone please thanks. What is the difference between a combination and a permutation? What clues are provided in a question to help you decide? Make on...

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