Answer:48 cm
Step-by-step explanation:
a^2+b^2=c^2
a^2+16^2=20^2
a^2+256=400
a^2= 144
a = 12
12+16+20=48
Answer:
48 cm
-3 • (x - 7)
Step 1 :
6x - 3 • (3x - 7)
Step 2:
21 - 3x = -3 • (x - 7)
Final result :
Your answer is negative one
