14. A science quiz has one multiple-choice question with answer choices A, B, and C, and two truel
false questions. Draw a tree diagram that shows
all of the ways a student can answer the
questions. Then find the probability of answering
all three questions correctly by guessing,

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain

Given the expression (7 ? 4i) ? (2 + 6i), perform the indicated operation and write the answer in the form a + bi.