ai có team k cho tui xin slot mid

a)3⁷:3⁶+(\(\dfrac{5}{17}\))⁰

=3¹+1

=4

b)

a) x=:

x=

b)x=+

x=

x=: 

x=

c):x=0,5-

:x=

x=:

x=6

d) (x-)=-1

(x-)=-1

(x-)=

x=+

x=

e) -5x=2:(-2)

-5x=

5x=-

5x=

x=:5

x=

g) x²+=

x²=-

x²=

x=

x=

a) \(\dfrac{2}{5}\)+\(\dfrac{3}{5}\):(-\(\dfrac{3}{2}\))+\(\dfrac{1}{2}\)

=\(\dfrac{2}{5}\)-\(\dfrac{2}{5}\)+\(\dfrac{1}{2}\)

=0+\(\dfrac{1}{2}\)

=\(\dfrac{1}{2}\)

A: ngẫu nhiên

B: chắc chắn

C: không thể

a)

Áp dụng tính chất dãy tỉ số bằng nhau, ta có:

\(\)\(\)\(\dfrac{x}{3}\)+\(\dfrac{y}{4}\)-\(\dfrac{z}{5}\)=\(\dfrac{30}{2}\)=15

Suy ra:

x=15.3=45

y=15.4=60

z=15.5=75

\(\dfrac{13}{16}\)=0,8125

\(\dfrac{-18}{150}\)=-0,12