Đáp án:
Giải thích các bước giải:
`text(Kẻ Oz // xx')`
`⇒ hat(O_1) = 30^o`
`⇒ hat(O_2) = 100^o - 30^o = 70^o`
`Mà hat(O_2) + hat(yBO) = 180^o`
`text(⇒ Oz // yy')`
`text(⇒ xx' // yy')`
helpppppppppppppppppppppppppppppp vsssssssssssssssss
Làm giúp mik với mọi người mik đang cần gấp á
Giúp mình với ạ. Gấp ạ. Put the verbs in brackets into an appropriate tense, either active or passive. An example has been done for you. Joseph Ford, the politician who (0) was kidnapped (kidnap) last week as he (1) ....(drive) to his office, (2).... (release) unharmed. He (3) ...(examine) by a doctor last night, and (4)... (say) to be in good health. Mr. Ford (5)... (find) walking along a small country lane early yesterday evening. A farmer (6)... (see) him, (7)... (recognize) who it was, and (8)... (contact) the police. When his wife (9)... (tell) the news, she said, "I'm delighted and relieved that my husband (10)... (find)." Acting on information received, the police (11)... (make) several arrests, and a man (12)... (now/question) in connection with the kidnapping.
`Tìm\ x:\ x - 50^2 = 2^2 x 3 x 5^4`
It is thought by some that life is better in a city. Others, however, prefer to live in the countryside. Discuss both views and give your opinion. * Give reasons for your answer and include any relevant examples from your own knowledge or experience. Write at least 250 words. You should spend about 40 minutes on this task. (nhanh nhé ạ,mk cần gấp,task 2 ielts writing ạ)
Giải giúp mình đang cần gấp cảm ơn
làm sao đánh được latex trên máy tính vậy bạn
vẽ trực tâm của: a, tam giác của abc của ba góc nhọn b, tam giác abc vuông tai a c, tam giác abc có góc a là góc tù
Vẽ anime/semi :> YC: Màu (màu nước nhé :>) Oc Digi tradi tùy nhưng phải full :>> Đẹp Nhanh Luật :>> Đề dễ nên có tâm nhá ;-;
a, $5x$ ( $4x^{2}$ + $3$ - $2x$ ) b, ( $x$ - $2$ ) ( $5$ - $2x^{2}$ + $2x$ ) đề : Tính
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