math
Synthesis sqrt(2*x^2-5*x-12)
Chemistry
The solubility of calcium sulfate at 30 degrees C is .209 g/100mL solution. calculate its Ksp.
Physics
A diver running 1.2 m/s dives out horizontally from the edge of a vertical cliff and reaches the water below 3.1 s later. How high was the cliff and how far from its base did the diver hit the water?
math
thank you so much
math
N and P are integers greater than 1 5N is the square of a number 75NP is the cube of a number the smallest value for N+P IS what? i cant figure it out, please help thank you so much
math
N and P are integers greater than 1 5N is the square of a number 75NP is the cube of a number smallest value for N+P IS what? thank you so much
Algebra
In cost in millions of dollars to remove x% of pollution is a lake modeled by C=5,000 over 200-2x. (a) What is the cost to remove 50% of the pullutant.
math
Tom has nickels, Jon has dimes,and Eliz has silver dollars.Jon has 7 more coins than Eliz.Tom has 7 fewer coins than ELIZ.Together, the three have $23.55. how many silver dollars does Elis have? please help me , because i am getting S=20.17, and usualy it should be integer num...
algebra
Tom has nickels, Jon has dimes,and Eliz has silver dollars.Jon has 7 more coins than Eliz.Tom has 7 fewer coins than ELIZ.Together, the three have $23.55. how many silver dollars does Elis have? please help me , because i am getting S=20.17, and usualy it should be integer num...
Math
this is a hard one
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