Answer:
(2x+1)(2x−1)
Step-by-step explanation:
4x^2−1
(2x+1)(2x−1)
Answer:
Step-by-step explanation:
The greatest common factor of 36 and 63 is 9.
Thus, = since (36 ÷ 9 = 4) and (63 ÷ 9 = 7).
Tan(angle) = opposite length/ adjacent length
Tan(50) = h/40
h = 40 x tan(50)
h = 47.67 or 47.7 feet