Answer:
8
Step-by-step explanation:
To find the Volume of a cylinder use
multiply 3.14 by 8
Divide by 25.12 on both sides
Find square root of both sides
Answer:
(6x - 7y)(6x + 7y)
Step-by-step explanation:
36x² - 49y² ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
36x² - 49y²
= (6x)² - (7y)²
= (6x - 7y)(6x + 7y)
Answer:
She plays 5 new songs for every 2 old ones.
If she plays 15 new songs, she will play 6 old songs.
15 + 6 = 21
thus, she played 21 songs altogether.