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:
A: y = 9.5x + 22.5
Step-by-step explanation:
Answer:
true
Step-by-step explanation:
if the point if below or to the left of the origin, it is negative. if it is above or to the right of the origin, it is positive
Answer:
$3.40
Step-by-step explanation:
Look at image above...
1.Write equation
2.Factor completely
3.Apply a zero product rate
4.solve linear equations in step 3
