Answer:
Step-by-step explanation:
Given : 
Solution:
Thus ,
Thus the solution is irrational since square root 7 does not have a perfect square and equal to 6+2square root of 14
Answer:
45 ft²
Step-by-step explanation:
I hope this helps!
Answer:
The answer is \frac{2A}{h} -b_2=b_1
Step-by-step explanation:
Given that the area of a trapezoid is ;
A=1/2 (b₁+b₂)h
When the equation is solved for b₁ it will be;
A=1/2 (b₁+b₂)h
This can be written as;
A=h/2 (b₁+b₂)
Multiply both sides by 2/h
2A/h = b₁+b₂
Make b₁ subject of the formula
2A/h - b₂ = b₁
48$ sense 12+12+12+12= 48 if added right or you can do 12*4= 48
