Answer:
9 inches^2
Step-by-step explanation:
Since a square has the same side lenghts the formula is
A=s*s
A=3*3
A=9
(54/100)*x = 81 => x = 8100/54=> x = 150;
1. 16 inches long, 2. 24 inches long, 3. 12.8 inches long
Answer:
27.
Step-by-step explanation:
i dont know if this is on a test but I hope i have the right answer for you.
Answer:
Given - (a-b)²=7
(a²+b²) =29
To find - ab
Solution -
( a- b) ^2 = 7
(a^2 + b^2) = 29
Expanding the bracket by using identity
a^2 + b^2 -2ab = 7
29 - 2ab = 7 (given a^2 + b^2 = 29 )
-2ab = 7 -29
-2ab = (-22)
ab = (-22) /(-2)
ab = 11
