The "n" in this expression will stand for the length of the sides.
Because we know there are 8 sides so 8xn will give us the perimeter.
Answer:
it would take 30k minutes, equivalent to 500 hours/almost 21 days/almost 3 weeks
Step-by-step explanation:
Answer:
Area = 1/2 × product of diagonalsso area = 1/2 × 30 ×16 = 240 cm²
also diagonals bisect each other at right angles so 1/2×30= 15cm,, 1/2× 16 = 8cm
therefore by pythagoras theorem,
+ 
= 
side = 17
Perimeter = 4×17 =68 cm.
For -(4)^7
the - is not affected by the power of 7
For (-4)to the power of7 is the same as -4 to the power of 7
It is because 7 is an odd number,the - will not change .Therefore
(-4)^7= -(4)^7
But keep in mind that if the power is an even number , the - will change to + when the situation is (-4)
For example,(-4)^4=(4)^4
I am not good at English if there is any things that you feel confused you may ask
12 since 12 is not negative. All absolute values r positive
