So first we need the formula for a triangular prism

Which, since we have all of our number for base, and both heights, we can plug it intk our formula

When we calculate it, it comes out to be 1020 cubuc feet.
Answer: 2/5
Explanation: 10+8+12 = 30 12/30 = .4 .4 = 2/5
Answer:
Anser is A
Step-by-step explanation:
The image shows a stationary train indicated by letter A and a moving train, indicated by letter B. If the person standing at the train station hears sounds coming from both trains, which explanation best predicts tThe image shows a stationary train indicated by letter A and a moving train, indicated by letter B. If the person standing at the train station hears sounds coming from both trains, which explanation best predicts tThe image shows a stationary train indicated by letter A and a moving train, indicated by letter B. If the person standing at the train station hears sounds coming from both trains, which explanation best predicts tThe image shows a stationary train indicated by letter A and a moving train, indicated by letter B. If the person standing at the train station hears sounds coming from both trains, which explanation best predicts t
Answer:
Step-by-step explanation: