Solve the compound inequality
3x>8 or -5/6x-5>9

for -5/6x-5>9= x<-84/5

Step-by-step explanation:

multiply both sides of the inequality by 6

= -5x - 30 >54

Move. The constant to the right hand side and change its sign

-5x > 54+30

Calculate

-5x > 54+30  = -5x > 84

Divide both sides of the inequality by -5 and flip the inequality sign

x< - 84/5

7) 16 sq units

8) L = 22 cm

Step-by-step explanation:

7) A = 1/2h·(sum of bases)

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

= 2(8) or 16 sq units

8) A (trapezoid) = 1/2(7)(10+12)

= 1/2(22)(7)

= 11(7) or 77 sq cm

To find 'l' in triangle:

A = 1/2·L·7

77 = 7L /2

7L = 154

L = 22 cm