ATIVIDADE 4 - Maria tem três fichas com algarismos e uma ficha com uma vírgula. Conforme as figuras abaixo. Utilizando as fichas, ajude a Maria a compor a maior quantidade possível de números distintos que representam quantidades com ao menos uma casa decimal. Pense um pouco para fazer a atividade, depois responda: a) Será que todos os números que você formou são realmente diferentes? b) Todos satisfazem o que foi pedido no enunciado? c) Quantas unidades, dezenas, décimos e centésimos têm cada um deles?

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?