Answer:
18
Step-by-step explanation:
Answer:-0.868
Step-by-step explanation: Find the number that is in the thousdants place which is the first 7 and look one place to the right for the rounding diget which is the next 7, and if the last 7 is lower that 5 round down and if it is greater than 5 round up.
.
You need to mutiply 6 by 20, then you need to devide what you got by 2.
looks like this. length times hight, devided by 2.
$=(a^2-10a)-(b^2+6b) +16$
$=[(a^2-2(5)a+25)-25]-[(b^2+2(3)b+9)-9]+16$
$=(a-5)^2-25-(b+3)^2+9+16$
$=(a-5)^2-(b+3)^2$
1 over 2 equals 2 over 4 equals 4 over 8.
Hope this helps! :)
