Номер 866, страница 242 - гдз по алгебре 9 класс учебник Солтан, Солтан

Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019

Авторы: Солтан Г. Н., Солтан А. Е., Жумадилова А. Ж.

Тип: Учебник

Издательство: Кокшетау

Год издания: 2019 - 2026

ISBN: 978-601-317-424-2

Рекомендовано Министерством образования и науки Республики Казахстан

V. Элементы теории вероятностей. 33. Геометрическая вероятность - номер 866, страница 242.

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            "edition" => Illuminate\Database\Eloquent\Collection {#1175}
            "task" => array:2 [
              "refs" => "1108616"
              "type" => "task"
            ]
            "text" => "<p><strong>866.</strong> Абонент ждет телефонного вызова с 14.00 до 15.00 часов. Какова вероятность того, что этот вызов произойдет в течение первых 10 минут?</p>"
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                "width" => "1559"
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                "path" => "/media/algebra_09/soltan-u19/0-1/866-1.webp?ts=1752834853"
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            0 => "*"
          ]
        }
        1 => App\Models\Element {#1173
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
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          #attributes: array:6 [
            "id" => 1278512
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1183
              #items: array:1 [
                0 => App\Models\Edition {#1174
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
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                  +preventsLazyLoading: false
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                  +exists: true
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                  #attributes: array:21 [
                    "id" => 4954
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение"
                    "field_order" => "2"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1177 …2}
                    "field_content_type" => "free"
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                    "field_solution_author" => "Неизвестный"
                    "field_moderator" => "pasha"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "1-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1178 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1179 …2}
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1180 …2}
                    "field_content_source" => null
                  ]
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                    "id" => 4954
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение"
                    "field_order" => "2"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1177 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "image"
                    "field_page_content_mode" => ""
                    "field_content_text_checked" => "0"
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Неизвестный"
                    "field_moderator" => "pasha"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "1-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1178 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1179 …2}
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1180 …2}
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                  ]
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                  +timestamps: true
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                    0 => "*"
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                }
              ]
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            }
            "task" => array:2 [
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                "width" => "592"
                "height" => 766
                "path" => "/media/algebra_09/soltan-u19/1-1/866-1.webp?ts=1752831686"
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            "id" => 1278512
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1183}
            "task" => array:2 [
              "refs" => "1108616"
              "type" => "task"
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            "img" => array:1 [
              0 => array:5 [
                "name" => "866-1.jpg"
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                "width" => "592"
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                "path" => "/media/algebra_09/soltan-u19/1-1/866-1.webp?ts=1752831686"
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        }
        2 => App\Models\Element {#1181
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
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          #escapeWhenCastingToString: false
          #attributes: array:6 [
            "id" => 1554467
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1191
              #items: array:1 [
                0 => App\Models\Edition {#1182
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                  #perPage: 15
                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:21 [
                    "id" => 5665
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 2 (rus)"
                    "field_order" => "3"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1185 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "text"
                    "field_page_content_mode" => ""
                    "field_content_text_checked" => null
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Gemini 2.5 Pro"
                    "field_moderator" => "tolik"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "2-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1186 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1187 …2}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1188 …2}
                    "field_content_source" => null
                  ]
                  #original: array:21 [
                    "id" => 5665
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Решение 2 (rus)"
                    "field_order" => "3"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1185 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "text"
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                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Gemini 2.5 Pro"
                    "field_moderator" => "tolik"
                    "field_edition_type" => "solution"
                    "field_root_dir" => "2-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1186 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1187 …2}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1188 …2}
                    "field_content_source" => null
                  ]
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                    0 => "*"
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              ]
              #escapeWhenCastingToString: false
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            "task" => array:2 [
              "refs" => "1108616"
              "type" => "task"
            ]
            "text" => "<p>Для решения этой задачи используется модель геометрической вероятности. Мы предполагаем, что момент времени, в который произойдет вызов, является случайной величиной, равномерно распределенной на заданном временном интервале.</p><p><strong>1.</strong> Найдем общую продолжительность временного интервала, в течение которого абонент ожидает вызов. Интервал ожидания длится с 14:00 до 15:00. Его общая продолжительность $T_{общ}$ составляет: $T_{общ} = 15 \text{ часов} - 14 \text{ часов} = 1 \text{ час}$ Переведем это время в минуты для удобства расчетов: $T_{общ} = 1 \times 60 = 60 \text{ минут}$ Это мера всего пространства возможных исходов.</p><p><strong>2.</strong> Определим продолжительность благоприятного временного интервала. Благоприятным событием считается вызов, который произойдет в течение первых 10 минут указанного часа, то есть в промежутке с 14:00 до 14:10. Продолжительность этого благоприятного интервала $T_{бл}$ составляет 10 минут.</p><p><strong>3.</strong> Вычислим вероятность. Вероятность $P$ события равна отношению длины благоприятного интервала к длине общего интервала: $P = \frac{T_{бл}}{T_{общ}}$</p><p>Подставим найденные значения в формулу: $P = \frac{10 \text{ минут}}{60 \text{ минут}} = \frac{10}{60} = \frac{1}{6}$</p><p><strong>Ответ:</strong> $\frac{1}{6}$</p>"
          ]
          #original: array:6 [
            "id" => 1554467
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1191}
            "task" => array:2 [
              "refs" => "1108616"
              "type" => "task"
            ]
            "text" => "<p>Для решения этой задачи используется модель геометрической вероятности. Мы предполагаем, что момент времени, в который произойдет вызов, является случайной величиной, равномерно распределенной на заданном временном интервале.</p><p><strong>1.</strong> Найдем общую продолжительность временного интервала, в течение которого абонент ожидает вызов. Интервал ожидания длится с 14:00 до 15:00. Его общая продолжительность $T_{общ}$ составляет: $T_{общ} = 15 \text{ часов} - 14 \text{ часов} = 1 \text{ час}$ Переведем это время в минуты для удобства расчетов: $T_{общ} = 1 \times 60 = 60 \text{ минут}$ Это мера всего пространства возможных исходов.</p><p><strong>2.</strong> Определим продолжительность благоприятного временного интервала. Благоприятным событием считается вызов, который произойдет в течение первых 10 минут указанного часа, то есть в промежутке с 14:00 до 14:10. Продолжительность этого благоприятного интервала $T_{бл}$ составляет 10 минут.</p><p><strong>3.</strong> Вычислим вероятность. Вероятность $P$ события равна отношению длины благоприятного интервала к длине общего интервала: $P = \frac{T_{бл}}{T_{общ}}$</p><p>Подставим найденные значения в формулу: $P = \frac{10 \text{ минут}}{60 \text{ минут}} = \frac{10}{60} = \frac{1}{6}$</p><p><strong>Ответ:</strong> $\frac{1}{6}$</p>"
          ]
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    "book" => Illuminate\Database\Eloquent\Collection {#1195
      #items: array:1 [
        0 => App\Models\Book {#1163
          #connection: "mysql"
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          #attributes: array:50 [
            "id" => 4298
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
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            "field_subject" => Illuminate\Database\Eloquent\Collection {#1148
              #items: array:1 [
                0 => App\Models\Term {#1147
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                    "id" => 6471
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Алгебра"
                    "field_abbreviated_name" => null
                    "field_cases" => array:6 [ …6]
                    "field_foreign_lang_name" => null
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                    "field_subject_type" => "technical_subject"
                    "field_translit" => "algebra"
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                    "updated_at" => null
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                    "field_cases" => array:6 [ …6]
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            "field_class" => Illuminate\Database\Eloquent\Collection {#1149
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                  #connection: "mysql"
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                  #primaryKey: "id"
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                  +exists: true
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                  #attributes: array:6 [
                    "id" => 5458
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "9"
                    "field_cases" => array:6 [ …6]
                    "field_translit" => "devjatyj"
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                  #original: array:6 [
                    "id" => 5458
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "9"
                    "field_cases" => array:6 [ …6]
                    "field_translit" => "devjatyj"
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              ]
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            }
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1153
              #items: array:1 [
                0 => App\Models\Term {#1152
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 7002
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Кокшетау"
                    "field_cases" => array:6 [ …6]
                    "field_translit" => "Kokshetau"
                  ]
                  #original: array:6 [
                    "id" => 7002
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Кокшетау"
                    "field_cases" => array:6 [ …6]
                    "field_translit" => "Kokshetau"
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                }
              ]
              #escapeWhenCastingToString: false
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            "field_author" => Illuminate\Database\Eloquent\Collection {#1150
              #items: array:3 [
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                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [
                    "id" => 7003
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Солтан"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Генадий"
                    "field_patronymic" => "Николаевич"
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                  #original: array:12 [
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_foreign_lang_surname" => null
                    "field_name" => "Генадий"
                    "field_patronymic" => "Николаевич"
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                    0 => "*"
                  ]
                }
                1 => App\Models\Term {#1140
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
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                  #perPage: 15
                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:12 [
                    "id" => 7004
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Солтан"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Алла"
                    "field_patronymic" => "Евгеньевна"
                    "field_surname_rp" => null
                  ]
                  #original: array:12 [
                    "id" => 7004
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Солтан"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Алла"
                    "field_patronymic" => "Евгеньевна"
                    "field_surname_rp" => null
                  ]
                  #changes: []
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                    0 => "*"
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                2 => App\Models\Term {#1141
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
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                    "created_at" => "2026-04-10 13:58:26"
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              ]
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                0 => App\Models\Term {#1145
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                    "created_at" => "2026-04-10 13:58:26"
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            "field_country" => Illuminate\Database\Eloquent\Collection {#1144
              #items: array:1 [
                0 => App\Models\Term {#1142
                  #connection: "mysql"
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                    "created_at" => "2026-04-10 13:58:26"
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              #items: array:1 [
                0 => App\Models\Term {#1157
                  #connection: "mysql"
                  #table: "terms"
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_translit" => "almaty"
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              #items: []
              #escapeWhenCastingToString: false
            }
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1162
              #items: []
              #escapeWhenCastingToString: false
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              #items: []
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            }
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            "field_under_the_edition_degree" => null
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            "field_for_whom" => "Учебник для учащихся 9 класса общеобразовательных школ"
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            }
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            }
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      ]
      #escapeWhenCastingToString: false
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    "page" => Illuminate\Database\Eloquent\Collection {#1200
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        0 => App\Models\BookPage {#1199
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            "content" => Illuminate\Database\Eloquent\Collection {#1214
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                0 => App\Models\Element {#1204
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                    "created_at" => "2026-04-10 13:58:26"
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                    "edition" => Illuminate\Database\Eloquent\Collection {#1206 …2}
                    "book_page" => array:2 [ …2]
                    "img" => array:1 [ …1]
                  ]
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              ]
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            "next" => array:2 [
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                  #attributes: array:24 [
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_url" => "/9-klass/algebra/kokshetau-soltan-uchebnik/vopr-242"
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                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1388 …2}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1389 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1407 …2}
                    "next" => array:2 [ …2]
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                    "book" => Illuminate\Database\Eloquent\Collection {#1414 …2}
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                  ]
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                    "book" => Illuminate\Database\Eloquent\Collection {#1414 …2}
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                  ]
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                    0 => "*"
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                }
                1 => App\Models\Task {#1398
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
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                  #perPage: 15
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                  #attributes: array:24 [
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_display_title" => "865"
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                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1399 …2}
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                    "book" => Illuminate\Database\Eloquent\Collection {#1428 …2}
                    "page" => array:2 [ …2]
                  ]
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№866 (с. 242)
Условие. №866 (с. 242)
скриншот условия
Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019, страница 242, номер 866, Условие

866. Абонент ждет телефонного вызова с 14.00 до 15.00 часов. Какова вероятность того, что этот вызов произойдет в течение первых 10 минут?

Решение. №866 (с. 242)
Алгебра, 9 класс Учебник, авторы: Солтан Генадий Николаевич, Солтан Алла Евгеньевна, Жумадилова Аманбала Жумадиловна, издательство Кокшетау, Алматы, 2019, страница 242, номер 866, Решение
Решение 2 (rus). №866 (с. 242)

Для решения этой задачи используется модель геометрической вероятности. Мы предполагаем, что момент времени, в который произойдет вызов, является случайной величиной, равномерно распределенной на заданном временном интервале.

1. Найдем общую продолжительность временного интервала, в течение которого абонент ожидает вызов. Интервал ожидания длится с 14:00 до 15:00. Его общая продолжительность $T_{общ}$ составляет: $T_{общ} = 15 \text{ часов} - 14 \text{ часов} = 1 \text{ час}$ Переведем это время в минуты для удобства расчетов: $T_{общ} = 1 \times 60 = 60 \text{ минут}$ Это мера всего пространства возможных исходов.

2. Определим продолжительность благоприятного временного интервала. Благоприятным событием считается вызов, который произойдет в течение первых 10 минут указанного часа, то есть в промежутке с 14:00 до 14:10. Продолжительность этого благоприятного интервала $T_{бл}$ составляет 10 минут.

3. Вычислим вероятность. Вероятность $P$ события равна отношению длины благоприятного интервала к длине общего интервала: $P = \frac{T_{бл}}{T_{общ}}$

Подставим найденные значения в формулу: $P = \frac{10 \text{ минут}}{60 \text{ минут}} = \frac{10}{60} = \frac{1}{6}$

Ответ: $\frac{1}{6}$

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Мы подготовили для вас ответ c подробным объяснением домашего задания по алгебре за 9 класс, для упражнения номер 866 расположенного на странице 242 к учебнику 2019 года издания для учащихся школ и гимназий.

Теперь на нашем сайте ГДЗ.ТОП вы всегда легко и бесплатно найдёте условие с правильным ответом на вопрос «Как решить ДЗ» и «Как сделать» задание по алгебре к упражнению №866 (с. 242), авторов: Солтан (Генадий Николаевич), Солтан (Алла Евгеньевна), Жумадилова (Аманбала Жумадиловна), учебного пособия издательства Кокшетау.