Algebra 2
thank you
algerba 1
1. the sum of 3 numbers is 207. the 2nd # is 8 times the first, while the third is 3 less than the first. find the #s. 2. the sumof 3 numbers is 161. the second number is 6 times the first, and the third is 5 more than the second. find the #s. Thanks so much!
chemistry
How many grams of NaCl must be added to 225.0 g of H2O at 45 °C to lower the vapor pressure of water by 2.21 mmHg? The vapor pressure of pure water is 71.93 mmHg at 45 °C.
Life Orientation
describe the lifestyle behaviour of the youth who abuse illegal and legal drugs and discuss how this lifestyle behaviour impacts the teenager.
Life Orientation
describe the lifestyle behaviour of the youth who abuse illegal and legal drugs and discuss how this lifestyle behaviour impacts the teenager.
health
The ________ muscle mass belongs to the posterior group
Help math!!
15 students took a science test. the average score was 88.0. later in the day a sixteenth student took the same test and scored a 92. the teacher recalculated the class average using all 16 of the scares. by how much will the class average have increased? show your work.
chemistry
assume all of the ionized aspirin remains in the buffer solution and all of the un-ionized aspirin goes into to the ethyl acetate, what is the molarity of the aspirin in the ethyl acetate at pH 2 and pH 8? what equation would ou use for this?
Math
if kelly gave 1/3 of a pizza to holly and 1/5 to diane how much did she have left
calculus
Find an equation of the tangent line to the curve at the given point. y^2=x^3 (2-x) (1,1)
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