a)vẽ đồ thị (D) của hàm số y= 2x+1 b) Xác định hệ số a,b của đường thẳng (d) y= ax + b biết (d) song song với đường thẳng (D) và (d) đi qua điểm A có tọa độ (1;1)

Cho tứ giác ABCD có góc B = góc C = 90 độ a) CM: 4 điểm ABCD cùng thuộc 1 đường tròn b) Nếu AC = BD thì tứ giác ABCD là hình gì?

Bài 1 phân tích thành nhân tử (y-z)^5 + (z+x)^5 - (x+y)^5 Moi nguoi giup minh voi a

tìm gtnn A=3. I1-2xI+1/2 B=(2x^2+1)^4-3 C=Ix-1/2I+(y+2)6^2+11 I

Căn 2x + 5 - căn 3x - 5 = 2 GIÚP MÌNH VỚI MN PLS

;-; 1 bài thoy ạ, lẹ giúp em, ảnh có hơi fake 1 tí

60 điểm 2 câu A và B dễ thôi! Cho biểu thức M = ($\frac{\sqrt{a}+2}{a+2\sqrt{a}+1}$- $\frac{\sqrt{a}-2}{a-1}$) $\frac{\sqrt{a}+1}{\sqrt{a}}$ A)Tìm điều kiện xác định của a để M có nghĩa B)Rút gọn M *Yêu cầu: Càng chi tiết càng tốt. Ai chi tiết nhất cho ctlhn

A natural disaster is a major adverse event resulting from natural processes of the Earth; examples include firestorms, duststorms, floods, hurricanes, tornadoes, volcanic eruptions, earthquakes, tsunamis, storms, and other geologic processes. A natural disaster can cause loss of life or damage property, and typically leaves some economic damage in its wake, the severity of which depends on the affected population's resilience and on the infrastructure available. An adverse event will not rise to the level of a disaster if it occurs in an area without vulnerable population. In a vulnerable area, however, such as Nepal during the 2015 earthquake, an adverse event can have disastrous consequences and leave lasting damage, which can take years to repair. Earthquakes An earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves. At the Earth's surface, earthquakes manifest themselves by vibration, shaking, and sometimes displacement of the ground. Earthquakes are caused by slippage within geological faults. The underground point of origin of the earthquake is called the seismic focus. The point directly above the focus on the surface is called the epicenter. Earthquakes by themselves rarely kill people or wildlife. It is usually the secondary events that they trigger, such as building collapse, fires, tsunamis and volcanic eruptions, that cause death. Many of these can possibly be avoided by better construction, safety systems, early warning and planning. 1. what is a natural disaster ? 2. what are consequences of the natural disaster ? 3. what kind of natural disaster mentioned above happened with Nepal in 2015 ? 4. what is the reason of an earthquake ? 5. what is epicenter Giup mình với, mình đang vội. Ai làm đúng mình cho 5 sao

helppppppppppppppppppppppppppppppppppp

Ai trả lời câu này hộ e em vote cho 5 sao nhanh giúp e ạ