Ageometric sequence is defined recursively by an = 4an-1 . the first term of the sequence is 0.5. which of the following is the explicit formula for the nth term of the sequence? a. 0.5 4n-1 b. 0.5 4n c. 4 0.5n d. 4 0.5n-1 e. 0.5 4n+1

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)

Finally, the arena decides to offer advertising space on the jerseys of the arena's own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14 what is this as a percentage? what is this as a fraction? what is the probability of not being shortlisted? give your answer as a decimal.