First, we determine the volumes of the posts may it be cylindrical in shape or rectangular prism.
(A) cylindrical:
( π(26.7/100)² - π(24.2/100)²)*(7.5) = 0.3 m³
(B) rectangular prism:
(40/100)²(7.5) - (35/100)²(7.5) = 0.28125 m³
Then, we calculate for the amount of substance
(A) cylindrical: (0.3 m³)(2700 kg/m³) = 810 kg
(B) rectangular prism : (0.28125 m³)(2700 kg/m³) = 759.375 kg
Then, calculate for the costs
(A) (810 kg)($0.38/kg) = $307.8
(B) (759.375 kg)($0.38/kg) = $288.56
Thus, the answer for A is rectangular post
B. About $19.24 can be saved.
Answer:
(x-5)² + y² = 4
Step-by-step explanation:
formula of circle: (x-h)² + (y-k)² = r² where (h,k) is coordinate of center and r is radius
center: (5 , 0) r = 2
Equation: (x-5)² + y² = 4
Answer:
the answer is x=6 for this question
If the discrimination is equal to 0, there is one real solution
Answer:
24702x + 9
Step-by-step explanation:
First, put everything you need to in parenthisis.
(2x^4) + (12x^4) + (16x^3) - (12x^2) - (18x + 9)
Then Simplifly
32x + 20736x + 4096x - 144x -18x + 9
Now Simplifly everything one by one
20768x + 4096x - 144x - 18x + 9
24864x - 144x - 18x + 9
24720x - 18x +9
24702x + 9
Now you can stop there, or solve for X by dividing each # by 24702
