Answer:

Step-by-step explanation:
Hello, I can help you with this ,
assuming the aquarium has a normal shape
The volume can be calculated with:
Volume= length*width*depth
Step one
according to the information in the question

put the values into the equation

combine similar terms

Have a good day.
Answer: c. refraction
Step-by-step explanation:
Sine is also known as Opposite over hypotenuse.
Answer:
<h2>x³ + x² - 3x - 3</h2>
Step-by-step explanation:
I'm assuming g*f means g times f, so you want to multiply the two functions together.
(x² - 3)(x + 1) Since the product is 2 binomials, use FOIL
= x²(x) + x²(1) - 3(x) - 3(1)
which simplifies to
<h2>x³ + x² - 3x - 3</h2>