Answer:
Hey there!
4a^2-20a+25 can be factored to (2a-5)(2a-5). Thus, the side length of the square is 2a-5. Basically, we want to find two of the same binomials that can multiply to get 4a^2-20a+25. For example, 2a times 2a = 4a^2, and you can use the foil method to solve for the rest.
4a^2 - 20a +25
(2a)^2 - 20a + (-5)^2
(2a - 5)^2
(9a2 − 16b2) is just a difference of squares, and can be factored to (3a+4b) and (3a-4b). The difference of squares formula can give us this.
Let me know if this helps :)
Mayumi: 3 miles / 2 hours.
12 miles / 3 miles = 4
12 miles / 8 hours
Edwin: 4 miles / 3 hours.
12 miles / 4 miles = 3
12 miles / 9 hours.
Edwin takes more time to complete a 12-mile hiking trail. He takes 1 hour more than Mayumi.
The answer is c............................................
Answer:
im pretty sure its 69 cause if u look its halfway between 33 and 33x2 is 66 and 69 is ther closest to that
Step-by-step explanation: