<h3>Answer:</h3>
1165.83 kg
<h3>Explanation:</h3>
The total mass is the product of volume of one brick, the number of bricks, and the density. For this problem, it is convenient to use dimensions in meters.

This is most easily done using the expanded form of the expression.
∫(9 -9t +t² -t³)dt = 9t -(9/2)t² +(1/3)t³ -(1/4)t⁴ +c
Answer:
sorry I don't get can you translate it into English pls
Find lengths of BC and DC.
Then use Pythagorean Theorem to find BD (the hypotenuse of right triangle DCB). So Pythag here would be:

See attached picture for full work.
Answer:
volume = 33.5 in³
Step-by-step explanation:
<u>Formula</u>:

<u>Given</u>:
Substituting the given values into the formula:



