Регистрация Спросить otvet5GPT
Anasteysha2610
09.12.2020 16:41
Алгебра
Есть ответ 👍

Earthlings are remotely probing the planetary system of the star Prob of the Measure galaxy for the content of hydrogen in the atmosphere. One signal is sent to each planet. On the way back, the signal passes through a relay station located at the edge of the solar system, and with a probability of 0.1 does not reach the Earth. All obtained results are saved on this station. If the sensing result that came to the Earth indicates that the percentage of hydrogen is above a certain threshold (a positive result), then a probe will be automatically sent to this planet from the Earth for a more detailed study (the probe, in particular, accurately determines the hydrogen content in the atmosphere planet and transmits the corresponding signal to Earth without interference). If the result is negative, the probe is not sent. In the event of a signal loss during transmission through an intermediate station, the machine decides to send a probe, throwing in the correct bone: if 6 falls out, then the probe is sent, otherwise it is not sent. The remote sensing method is not accurate: if the sensing result is positive, then in fact the percentage of hydrogen exceeds a predetermined threshold with a probability of 0.8; if the sounding result is negative, then in fact the percentage of hydrogen does not exceed the specified threshold with a probability of 0.95. Based on the data stored at the relay station in the study of similar planetary systems of the Measure galaxy, for any planet of the Prob star system, the result of remote sensing is expected to be positive with a probability of 0.3. a) What is the likelihood that a probe sent to some planet W will report that the percentage of hydrogen in the atmosphere of W is above a certain threshold? b) What is the probability that a probe will be sent to some planet U randomly selected from the studied planetary system? c) The result of remote sensing of planet Y of the Prob star system did not reach Earth. A probe was sent to Y, which gave us accurate information that the percentage of hydrogen in the atmosphere of Y is sufficient. What is the likelihood that the result of its remote sensing stored at the intermediate station was positive? d)A probe was sent to planet Z and reported that the percentage of hydrogen was insufficient. What is the likelihood that we received a remote sensing of planet Z? Note:Enter a decimal with a dot followed by four decimal places, for example, 0.3571.

127
499
Посмотреть ответы 1

Ответы на вопрос:

БатяОтвечало
БатяОтвечало
4,5(81 оценок)
X-5√x=-4 пусть  √х=а, тогда х=а² а²-5а=-4 а²-5а+4=0 d=25-16=9 а₁=(5+3): 2=4; а₂=(5-3): 2=1 вернёмся к переменной х √х=4, значит х=4²=16 √х=1, значит х=1²=1 ответ: 1 и 16

Реши свою проблему, спроси otvet5GPT

  • Быстро
    Мгновенный ответ на твой вопрос
  • Точно
    Бот обладает знаниями во всех сферах
  • Бесплатно
    Задай вопрос и получи ответ бесплатно

Популярно: Алгебра

Caktus Image

Есть вопросы?

  • Как otvet5GPT работает?

    otvet5GPT использует большую языковую модель вместе с базой данных GPT для обеспечения высококачественных образовательных результатов. otvet5GPT действует как доступный академический ресурс вне класса.

  • Сколько это стоит?

    Проект находиться на стадии тестирования и все услуги бесплатны.

  • Могу ли я использовать otvet5GPT в школе?

    Конечно! Нейросеть может помочь вам делать конспекты лекций, придумывать идеи в классе и многое другое!

  • В чем отличия от ChatGPT?

    otvet5GPT черпает академические источники из собственной базы данных и предназначен специально для студентов. otvet5GPT также адаптируется к вашему стилю письма, предоставляя ряд образовательных инструментов, предназначенных для улучшения обучения.

Подпишись на наш телеграмм канал

GTP TOP NEWS