Answer:
3.1
Step-by-step explanation:
<span>4x^2 - 25
= (2x)^2 - 5^2 .................using a^2 - b^2 = (a+b)(a-b)
= (2x + 5)(2x - 5)</span>
Answer:
d
Step-by-step explanation:
Answer:
y ≤ 3x
y > - 2x - 1
(1st choice)
Step-by-step explanation:
Answer: 56
Step-by-step explanation: 7*480= 3360
3360/60= 56