Thursday
April 24, 2014

Posts by Jenifer


Total # Posts: 20

Physics
5.00 kg of some liquid at 10.0 oC is mixed with 1.00 kg of the same liquid at 40.0 oC. what is the final equilibrium temperature? ignore any heat flow with the containers and/or surroundings

algebra
Suppose that an insurance agent offers you a policy that will provide you with a yearly income of $30,000 in 30 years. What is the comparable salary today, assuming an inflation rate of 3% compounded annually? (Round your answer to the nearest cent.)

Chemistry
Assume that gas mileage is proportional to the total energy released upon combustion of fuel. Use your results in question 2 (Ethanol=88,800 kJ/gal n-Octance=105,000 kJ/gal) to determine the ratio of ethanol /n-Octane required, in gallons to drive equal distances. How much sho...

math
if cosx = 12/13 and x is a quadrant I angle. Find the value of sinx

TRIG
Thank you

Anatomy
I am working on a research project. I am concerned about my opening paragraph. Could anyone read this to see if it makes sense. My topic is C. Diff. In 2009 according to the CDC and US Deparmtne of Social Secirty there were 2,437,163 people that died that year. During 2009, au...

reading
what is an antonym for pallor?!

algebra
What is the appropriate format and answer to the following multiplication problem involving numbers in scientific notation: (5 x 10^4) (9 x 10^4)?

statistics
Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more? Why or why not?

science
choose a topic such as history or science you feel is relevant to the age group you work with or expect to work with. 200-300 words how you can assess a child's knowledge on your chosen topic using at least five of gardner's intelligences.

science
my daughter has a science project she is in 7th grade what should she do

Physics
A force of gravity pulls downward on a book on a table what force prevents the book from accelerating downward?

Calculus
Use a graph to estimate: Lim x-> 0 of sin(8x)/x when x is measured in degrees.

Chemistry
explain how you would make the following solution. You should tell how many grams of the substance you need to make the solution, not how many moles. 2L of 6M HCl

chemistry
45.0 ml of 9.0x10 the negative 2m hno3

spelling
OCEAN:SEA::STREAM

3rd grade
What does factor mean in math

3rd grade
Wjat does factor mean in math

Chemistry
what occurs during the operation of a voltaic cell based on the following reaction?..... Ni (s) + Pb2+ (aq) --> Ni2+ (aq) + Pb (s)

MATH!!!
I have 3 2/3 + 7 1/8 = I 1st got 10 19/24 then I got 239/24 please HELP!! What is the right answer? 10 19/24 or 259/24 depending if you have to express it as a fraction or not

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