Which function does not represent exponential decay a- y=5(0.4)^x b- y=0.4(0.5)^x c- y=5(4)^x d- y=4(0.5)^x

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.

Enter the amplitude of the function. f(x)=3cosx

What is the area of parallelogram rstu? 21 square units 24 square units 28 square units 32 square units