A surveyor in an airplane is flying toward the lake. Shw observes the angle of depression to the side of the lake are 45 degree and 32 degree. At the moment the airplane is 9750m from the near side of the lake. Find the width

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"

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.