The equation for an ellipse with a horizontal major axis is x²/a² +y²/b² =1 . the orbit for mercury can be plotted on the coordinate plane with the center at the origin and the sun located at one focus. use this information and the mercury’s calculated mean distance from the sun to find the value of a. express your answer in millions of miles

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.