Is the answer to 6x^2-x-15=0 x=5/3,-3/2 ? Using the quadratic formula

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

Evaluate the expression. (9 + 5)(3 + 2)0

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.