Xx2,7+3,2xX+Xx1+Xx3,1=3200

Xx(2,7+3,2+1+3,1)=3200

Xx10=3200

X=3200:10

X=320

Ta có: \(x+\left(-\dfrac{31}{12}\right)^2=\left(\dfrac{49}{12}\right)^2-x\)

\(\Leftrightarrow x+x=\dfrac{2401}{144}-\dfrac{961}{144}=10\)

hay x=5

\(\Leftrightarrow y^2=\left(\dfrac{49}{12}\right)^2-5=\dfrac{1681}{144}\)

hay \(y=\dfrac{41}{12}\)

Ta có: a chia cho 2 dư 1 => a - 1 ⋮2

         a chia cho 3 dư 1 => a - 1 ⋮3

=> a - 1 ⋮6 => a -1 + 6.2 ⋮ 6 => a +11 ⋮ 6 (1)

Ta có: a  chia 5 dư 4 => a - 4 ⋮5 => a - 4 + 5.3 ⋮5  => a + 11 ⋮5 (2)

Ta có: a chia 7 dư 3 => a - 3 ⋮7 => a - 3 + 7.2 ⋮7 => a + 11 ⋮7 (3)

Từ (1) ; (2) ; (3) => a +11 ∈∈BC ( 6; 5; 7 ) 

Có: BCNN ( 6; 5; 7 ) = 210 

=> a + 11 ∈ BC ( 6; 5; 7 ) 

=> a ∈ { 199; 409 ;....}

Mà a là số tự nhiên nhỏ nhất nên a = 199.

sai òi bn oi:<

ko cs chia cho 6

T^T

2k8 đúng rồi 2×3=6 mà

 It was such bad news that MEOWW burst into tears.

=> The news....was so bad that MEOWW burst into tears.........

=>the news...was so bad that MEOWW burst into tears

=> The news....was so bad that MEOWW burst into tears.

giúp mik T^T

love....khum

long time no seeI miss you so much

It is such a correct choice that love MEOWW❤

\(\Rightarrow\)It is so correct choice that love MEOWW❤

So sánh không ngang bằng

so sánh ko ngang bằng

kiểu so sánh không ngang bằng

\(\dfrac{16^3.3^{10}+144.6^9}{4^6.3^{12}+6^{11}}\)

=\(\dfrac{16^3.3^{10}+144.6^9}{4.4.4.4.4.4.3^{12}+6^{11}}\)

=\(\dfrac{16^3.3^{10}+144.6^9}{16.16.16.3^{12}+6^{11}}\)

=\(\dfrac{16^3.3^{10}+4.6^2.6^9}{16^3.3^{12}+6^{11}}\)

=\(\dfrac{4.6^{11}}{3^2+6^{11}}\)

=\(\dfrac{4}{9}\)

Ko chắc

tử số  4⁶.3¹⁰+144.6⁹ = 2¹².3¹⁰+2.2³.3.3.6⁹

= 6⁹.(2³.3)+(2³.3).6⁹.6 = 6⁹.(2³.3).(6+1) = 6⁹.(2³.3).7 = 6⁹.2.3.2².7

= 6¹⁰.4.7

mẫu số 4⁶.3¹²+6¹¹ = 2¹².3¹²+6¹¹ = 6¹²+6¹¹ = 6¹¹.6+6¹¹ 

= 6¹¹.(6+1) = 6¹¹.7

\(\dfrac{16^{3}.3^{10}+144.6^{9}}{4^{6}.3^{12}.6^{11}}=\dfrac{6^{10}.4.7}{6^{11}.7}\)=\(\dfrac{4}{6}=\dfrac{2}{3}\)

 mà cậu trình bày trên phân số nhé để nhanh thì mình chia ra thôi

\(\dfrac{16^3.3^{10}+144.6^9}{4^6.3^{12}+6^{11}}\) 

=\(\dfrac{2^{12}.3^{10}+2.2^3.3.3.6^9}{2^{12}.3^{12}+6^{11}}\) 

=\(\dfrac{6^9.\left(2^3.3\right)+\left(2^3.3\right).6^9.6}{6^{12}+6^{11}}\) 

=\(\dfrac{6^9.\left(2^3.3\right).\left(6+1\right)}{6^{11}.6+6^{11}}\) 

=\(\dfrac{6^9.2.3.2^2.7}{6^{11}.\left(6+1\right)}\) 

=\(\dfrac{6^{10}.4.7}{6^{11}.7}\) 

=\(\dfrac{4}{6}=\dfrac{2}{3}\)

broke

cut

the car(break).broke.. down when he was driving home from work.

you'd better have your hair(cut).cut..