Answer:

Step-by-step explanation:
we know that
The volume of a trough is equal to

where
B is the area of equilateral triangle
L is the length of a trough
step 1
Find the area of equilateral triangle B
The area of a equilateral triangle applying the law of sines is equal to

where


substitute


step 2
Find the volume of a trough

we have


substitute


Answer:
3/10
Step-by-step explanation:
Answer:
3 weeks for one song
Step-by-step explanation:
The function would be y = 3x + b
60×4=240
so 240/1 and 60×4
-------
1
both are equal to 240
Answer:

Step-by-step explanation:
The given function are;
f(x) = x² - 3·x - 12, and g(x) = -x - 12

Therefore;

g(-8) = -(-8) - 12 = 8 - 12 = -4
∴ f(g(-8)) = f(-4) = (-4)² - 3×(-4) - 12 = 16
Therefore;
