Question

Can someone pls give answer of this question

Answer 1

Answer:

11. -1/2×(27/4)^3

12. x= 2

Step-by-step explanation:

11. X÷(-2/3)^-3 =(4/27/^-2

then we solve this equation

X= (4/27)^-2 × (-2/3)^-3

= (27/4)^2 × (-3/2)^3

= - 1/2×(27/4)^3

12. 5^2x+1 ÷25= 125

5^2x+1 = 125×25

5^2x+1= 5^3 × 5^2

5^2x+1 = 5^5

take both side power

2x+1= 5

2x = 5-1

2x = 4

x = 2