Answer:
Yes ,0.3434434443 is a rational number.
Surface are of a cube = 6a^2
surface area
= 6 (4.5)^2
= 6 x 81 /4
= 243/2
= 121.5
6(x+9) = 7(x-4)
6x+54 = 7x-28
54 = x-28
82 = x
The number is 82.
Answer:
b= 41
h= 38
Step-by-step explanation:
h= b-3
A= 19b
<u>(b-3) x b</u> = 19 b
2
(b-3) x b = 19b(2)
(b-3) x b = 38b
b-3 = 38
<u>b= 41</u> : h= 41 - 3 =<u>h = 38</u>