В понедельник я навестил своего друга. Я построил новый дом ддя него. Я написал 10 новый сказок. Во вторник и среду я учил русский и писал письма своим русским друзьям. В пятницу я мыл мой дом и смотрел телевизор. В субботу я навещал своего доктора.В воскресенье я делал бодьшие торты.
My poor old bear,
Has got no nose,
And only one good eye!
And now his hair is no longer fair,
But to me my Teddy's dear!
log(3x - 11) + log(x - 27) = 3
log[(3x - 11)(x - 27)] = 3
(3x - 11)(x - 27) > 0 <=> 3x^2 - 92x + 297 > 0
1. 3x - 11 > 0 => x > 11/3 => x > 27
x - 27 > 0 => x > 27
2. 3x - 11 < 0 => x < 11/3
x - 27 < 0
=>
одз x ∈(-∞; 11/3) & (27; +∞)
т.к. основание не указанно и написано log делаю вывод, что основание 10
3x^2 - 92x + 297 = 1000
3x^2 - 92x - 703 = 0
D = 92^2 + 4*3*703 = 16900 = 130^2
x1 = (92 - 130) / 6 = -19/3 оба икса подходят под одз
x2 = (92 + 130) / 6 = 37
1. <em>Sally </em><u>is having</u> breakfast now.
2. <em>We </em><u>are going</u> to school at the moment.
3. Look! <em>They </em><u>are doing</u> shopping.
4. <em>Sam </em>and <em>I </em><u>are eating</u> lunch now.
5. <em>You </em><u>are swimming</u> in the pool at the moment.
6. <em>He </em><u>is playing</u> football with John.
7. That <em>cat </em><u>is lying</u> under the chair.
8. Those <em>children </em><u>are studying</u> a new rule now.
9. <em>I </em><u>am reparing</u> my car at the moment.
10. <em>Mary </em><u>is staying</u> with her aunt these days.
11. These <em>women </em><u>is sitting</u> and <u>talking</u> right now.
12. That <em>man </em><u>is travelling</u> by train.