Answer:
In this case, the net effect is that you moved the decimal point three places to the right, which is the same as multiplying 7 by 1,000.Step-by-step explanation:
Answer:
270 cm^2
Step-by-step explanation:
area of atriangle =base*height/2
=30 cm * 18 cm/2
=540 cm^2/2
=270 cm^2
(2x+9)+(x)=180
3x+9=180
-9 -9
3x=171
÷3 ÷3
x=57