Simplify nine square root of two minus three square root of seven-plus square root of eight minus the square root of twenty-eight.

= 11√2 - 5√7

Step-by-step explanation:

9√2 - 3√7 + √8 - √28

= 9√2 - 3√7 + 2√2 - 2√7

add similar elements

= 11√2 - 3√7 - 2√7

= 11√2 - 5√7

10 cm

step-by-step explanation:

if the polygon is a rectangle, then the perimeter is x+x+y+y. using the values that you gave, the perimeter is 3+3+2+2=10cm.

u bout ugly as   a mf

step-by-step explanation: lol