\(\dfrac{4}{3}-x=\dfrac{2}{5}\\ x=\dfrac{4}{3}-\dfrac{2}{5}\\ x=\dfrac{14}{15}\)

\(\dfrac{3}{5}+\dfrac{4}{7}+\dfrac{2}{5}+\dfrac{1}{7}+\dfrac{2}{7}\\ =\left(\dfrac{3}{5}+\dfrac{2}{5}\right)+\left(\dfrac{4}{7}+\dfrac{1}{7}+\dfrac{2}{7}\right)\\ =\dfrac{5}{5}+\dfrac{7}{7}\\ =1+1\\ =2\)

   3/5 + 4/7 + 2/5 + 1/7 + 2/7

=(3/5 + 2/5) + (4/7 + 1/7 + 2/7)

= 1 + 1 = 2

3/5 và 2/5 có mẫu chung là 5, 2+3 = 5 => 5/5 = 1

4/7, 1/7 và 2/7 có mẫu chung là 7, 4+1+2 = 7 => 7/7 = 1

ta có f(x)=-12x+4x--16x⁴--5

              =-12x +4x+16x⁴+5

                 =16x⁴-8x+5 ( vì -12x+4x=-8x)

=>   \(f\left(\frac{-1}{2}\right)\)=\(16.\left(\frac{-1}{2}\right)^4-8.\left(\frac{-1}{2}\right)+5\)

                            =\(16.\frac{1}{16}-\left(-4\right)+5\) 

                            =1+4+5

                            =10

Vậy \(f\left(\frac{-1}{2}\right)=10\)

Ta có:

f(-1/2)=-12.(-1/2)+4.(-1/2)-16.(-1/2)^4-5

           = 6-2+1-5

           =0

Vậy f(-1/2)=0

T i c k cho mink nha

Bạn ơi bạn ghi rõ lại đề cho mik đi ạ khó đọc lắm ạ

#)Giải :

\(\left(\left|x\right|-\frac{1}{8}\right)\left(-\frac{1}{8}\right)^5=\left(-\frac{1}{8}\right)^7\)

\(\Leftrightarrow\left(\left|x\right|-\frac{1}{8}\right)=\left(-\frac{1}{8}\right)^2\)

\(\Leftrightarrow\left(\left|x\right|-\frac{1}{8}\right)=\frac{1}{64}\)

\(\Leftrightarrow\left|x\right|=\frac{9}{64}\)

\(\Leftrightarrow\hept{\begin{cases}x>0\\x< 0\end{cases}\Rightarrow\hept{\begin{cases}x=\frac{9}{64}\\x=-\frac{9}{64}\end{cases}}}\)

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Bạn mở ra đằng sau có phần hướng dẫn giải không? Mk mới học lớp 6 nên ko giúp bạn được

C. maker

Giúp mình câu này với ạ
4. My aunt is a famous Pho ......... in Hanoi

A. make B. making C. maker D. made

C

1.There isn’t ....some........milk in the jar .
2. No, there aren’t ...any....... noodles.
3. Remember to take ..an...... umbrella.
4. Do you have ...a....... meat?
5. I’m hungry. I’d like .......some..... chicken and rice.
6. I want .....an.......apples.
7. They have ...a...... bread and .....some....... eggs.
8. Mrs Lan needs ....some..... butter . She doesn’t need ......a........ cheese
9. That is ...an......onion.
10. Please give me ...a..... compass .

4. He was so pleased, he bought us all dinner after we finished work (treated)
-> He was so pleased, he treated us all to dinner after we finished work.
5 Global temperatures are higher now than ever before(so)
-> Never before has the global temperatures been so high.
9 The council have been thinking for some time of redeveloping the city centre(under)
The redevelopment of the city centre has been under consideration by the council for some time.
10 This weekend, the local Art Society will be displaying their latest works at the library (Display)
The local Art Society's latest work will be on display at the library this weekend.
Minh ko chắc đáp án nên bạn than khảo thôi nha