- How many feet in a meter?

Discover Questions

Let X be a random variable with E(X)=3 and Var(X)=9. Then E(X^2) is? (The answer should be 18 but explain?)? What is the parent acid and base of KNO3 and is the acid strong or weak and is the base strong or weak? Distance in kilometers. Light travels in one year at the rate of 186,000m/s. To the nearest star if from earth its 4.3 light years away? Find the frequency of the following wavelength;
1.8×10^-5 m? Is this MgCl2, KCl, or K2SO4?