Answer:

Step-by-step explanation:
Recall the form of the difference of squares.

Now let's apply it to your numbers:

Simplify:

Answer:
461.81
Step-by-step explanation:
V = 3.14 times radius ^2 h/3
V = (3.14) ×7^2 9/3
V = 461.81
The statement is false because when you use distributive property, you get -12=-4+16 and when you add 16 to -4, you'll get 12, not -12, making the statement false.
Answer:
4. D
5. A
Step-by-step explanation:
hope this helps