algebra
Simplify 2/root 3(49) I solved it as 2 root 3(49) over 49. the system that I entered it in says this is incorrect. Help I need to understand how to do this problem with steps. I am so confused. Thanks
Chemistry
I have done this and got 31.68 for the molar mass. I converted 720.mmHg to .947 atm. T is 304 degrees K. I came up with n=5.47*10^-3. This gives me a molar mass of 31.63. I am being told this is incorrect. I am not sure where I am going wrong. Can you help me? L=.144
Chemistry
An experiment shows a 144mL sample of gas has a mass of 0.173g at a pressure of 720mmHg at a temperature of 31 degrees celsius. what is the molar mass of the sample of gas?
Math
In right triangle ABC what is the arithmetic mean (average), in degrees, of the measures of the two smallest angles? Explain how the answer is 45 degrees.
algebra
Triangles ABC and DEF are similar. Find the area of triangle ABC. Round your answer to the nearest tenth. the answer should be __________m^2 triangle abc has a 12m. triangle def has 12m and 18m.
Chemistry
How many grams of Na3PO4 are needed to produce 250mL solution that has an Na concentration of 1.04M?
College Algebra
Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions. 2x2 = -2 -5 Thank you
Math
In the word Symmetry, which letters are symmetrical?
HELP!
Please it is important!
Physics
A space probe is carried by a rocket into outer space where it continues to move on its own in a straight line. What keeps the probe moving? Is the answer: the gravitation forces from different stars and planets
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