Thursday
April 24, 2014

Posts by irma


Total # Posts: 24

math
a square sheet of tin 30cm on a side is to be used to make an open - top box by cutting a small square of tin from each corner and bending up the sides. how large should be the square cut from each corner to make the box's volume as large as possible

Math Technology
A pilot is flying to a destination 700 miles away at a bearing of 105 degrees. The cruising speed of the plane is 500 mile per hour and the the wind is blowing between 20 and 30 miles per hour at a bearing of 30 degrees. At what bearing should the pilot aim the plan to compens...

geometry
what is the distance between N(5,2),K(-2,8)

math
pauline has 35 cups of flour. She makes cakes tht require 2 1/4 cups each. if she makes as many such cakes as she has flour for, how much flour will be left over?

Math
what is 1/5 in base 5?

Chemistry
Urea, (NH2)2CO, is dissolved in 73.5 g of water. The solution freezes at -0.095°C. How many grams of urea were dissolved to make this solution? (Answer must be in grams)

Chemistry
In a mountainous location, the boiling point of pure water is found to be 95°C. How many grams of sodium chloride must be added to 9 kg of water to bring the boiling point back to 99°C? Assume that i = 2. So what will my answer be in grams?

math
Yes, thanks so much! Irma

math
Repeated addition is like 4+4+4

math
Write a word problem for 5 x 2 1/2 which requires the use of repeated addition model.

5th grade algebra
how do I solve 3/4 +1/2= 1 1/y y=?

algebra
If LOGx (A)=0.7 and LOGx (B) =0.5 how do I solve LOGx (B/A)

algebra
ln(3x-4)-Ln(x+1)=Ln(2)

college algebra
Am not sure how to plug in e^e on calculator

college algebra
3^x-2=11

college algebra
Do not know how to evaluate: e^e

college algebra
Solve: 2^x-3= 32^x+1

Economics
If at least 1 of the conditions for a perfectly competitive market is not met, does this invalidate the model of perfect competition?

intermediate algebra
A farmer with 3000 feet wants to enclose a rectangular plot that borders on a straight highway. If the farmer does not fence the side along the highway, what is the largest area that can be enclosed?

intermediate algebra
A farmer with 3000 feet of fencing wants to enclose a rectangular plot that borders on a straight highway. If the farmer does not fence the side along the highway, what is the largest area that can be enclosed?

chemistry
P total = 0.45 + 0.25 + 0.60 = 1.3

chemistry
What is the total pressure of a gas mixture that contains hydrogen at 0.45 atm, nitrogen at 0.25 atm, and argon at 0.60atm

chemistry
What is the total pressure of a gas mixture that contains hydrogen at 0.45 atm, nitrogen at 0.25 atm, and argon at 0.60atm

chemistry
what are the reasons why the Cu(II) solution has to be titrated immediately after addition of KI?

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