giúp mình vs!
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Từ hình vẽ ta thấy :
\(x< -1\)
\(\Leftrightarrow x+4< 4+\left(-1\right)\)
\(\Leftrightarrow x+4< 3\)
\(\Rightarrow C\)
2. It is thought that he stole the money.
He is thought to have stolen the money.
3. It is said that she is going to study abroad.
She is said to be going to study abroad.
4. It is thought that the house was broken into last night.
The house was thought to be broken into last night.
a: BC=căn 6^2+8^2=10cm
AM=BC/2=5cm
b:
ΔAEH vuông tại A có AI là trung tuyến
nên IH=IA
=>góc IHA=góc IAH
góc IAH+góc MAB
=góc MBA+góc IHA=90 độ
=>góc IAM=90 độ
=>AI vuông góc AM
Hình tự vẽ
+) Xét \(\Delta\)DEF vuông tại D
\(\Rightarrow EF^2=ED^2+DF^2\) ( đl Py-ta-go)
\(\Rightarrow DE^2=EF^2-DF^2\)
\(\Rightarrow DE^2=10^2-6^2\)
\(\Rightarrow DE^2=100-36=64\)
\(\Rightarrow DE=\sqrt{64}=8\) (cm) ( do DE > 0 )
Vậy DE = 8 ( cm)
Where is he?
Why is he sad?
What is that?
When is the exam?
Who is she?
Why is he happy?
Where are they?
Who is crying?
When is your birthday?
Who makes dinner?
Why are you running?
Where is Jack?
trên xuống dưới và trái qua phải
where why
what when
who why
what when
where who
where what
when who
why where