# 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?