Answer:

Step-by-step explanation:
The perimeter is the sum of the side lengths.
A rectangle has 4 sides: 2 lengths and 2 widths, so the perimeter formula is

The length is 20 meters and the width is 4 meters.

Multiply.

Add.

The perimeter of the rectangle is <u>48 meters. </u>
I think that it is median since the 5 scores are so close together and the 6th is an outlier (freaky high)
Answer:
20:a , a=48
Step-by-step explanation:
5*4=20, 12*4 = 48
Simple mathematics, you multiple 5 by 4 to get 20, do the same thing to 12.
Answer:
( -2,-2 )
Step-by-step explanation:
when you reflect something on the x-axis, you make the x coordinate stay the same and you change the y coordinate. so in this case, the -2 would stay the same and the 2 would become the opposite of that number and become -2. hope this helps.
Answer:
71.51
Step-by-step explanation:
A=ah+bh+ch+1
2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=3·3+7·3+7·3+1
2·﹣34+2·(3·7)2+2·(3·7)2﹣74+2·(7·7)2﹣74=71.51219