Posts by Leandra

Total # Posts: 13

Chemistry
A 250 g mass of material has a temperature of –45˚C. Its specific heat is 0.36 J/gˑ˚C. How much heat energy is required to raise its temperature to 10˚C? (its melting point is 23 ˚C)

math
Thanks Steve! :)

math
also, did i conduct the 10 iterations correctly?

math
Start with the basic function f(x)=2x. If you have an initial value of 1, then you end up with the following iterations. • f (1) = 2 ⋅1 =2 • f 2 (1) = 2 ⋅2 ⋅1 =4 • f 3 (1) = 2 ⋅ 2 ⋅ 2 ⋅1 = 8 
 1. If you continue this ...

chemistry
If 0.50 moles of NaOH were added to reach the equivalence point in a titration how many miles of tartaric acid reacted?

Confused calculus
Pete invests $10,000 in a certificate of deposits that earns 3% interest , compounded yearly. What will be te compound income at the end of 5 years?

Steve pre calc
What is the right hand limit of f(x)= |x-9|/x-6 as x approaches 7? I think it's 1.

CALC
A biased coin whose chance of heads is 0.4 is tossed five times in a row. What is the probability that heads is tossed exactly 2 times? 20.2% 23.04% 36.8% 40.1% 45.6%

CALC
Find the coefficients of this binomial using Pascal’s triangle: (a + b)^8.

Math
what is ti i have know idea please tell me the answer.

Chemistry
I have an oxide material with an unknow metal. I know that the moles of the oxygen and the metal are 0.09 When I calculate the atomic weight my professors says I should get number in the 50's and 60's I don't. I get 16, which is oxygen. How do I figure out the ...

english
Which of the following events is an example of situational irony in "R.M.S. Titanic"?

Social Studies
how would the local newspaper obtain information from international press agencies?