The indian ocean is 2/10 if the area of the world's oceans. what fraction represents the area of the remaining oceans that make up the world's oceans? write it in simplest form.

Use the x-intercept method to find all real solutions of the equation.x^3-10x^2+27x-18=0

If the discriminant if a quadratic equation is 4 which statement describes the roots?

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables