Wall height=wall above ground + wall below ground
or, 6 ft = 4 ft + wall below ground
or, wall below ground = 2 ft
Answer:
2,592 square cm.
Step-by-step explanation:
It is given that the dimensions of rectangle A are four times the dimensions of rectangle B.
Let dimensions of rectangle B are l×b.
So, the dimensions of rectangle A are 4l×4b.
Area of rectangle is
Area of rectangle B is
The area of rectangle B is 162 square cm.
Area of rectangle A is
Therefore, the area of rectangle A is 2,592 square cm.
Answer:
<u>Gradient</u><u> </u><u>of</u><u> </u><u>line</u><u> </u><u>t</u><u> </u><u>is</u><u> </u><u>-</u><u>1</u><u>/</u><u>5</u>
Step-by-step explanation:

Answer:
Rational
Step-by-step explanation:
4.5656565656... can be turned into a fraction. The number is a repeating decimal. Repeating decimals are rational numbers.
4.5656565656... = 
Hope this helps.
Answer:
6 units
Step-by-step explanation:
9x - 4 = 2 ( 5x - 5 )
9x - 4 = 10x - 10
10x - 10 = 9x - 4
10x - 9x = - 4 + 10
x = 6