Answer:
identity property of multiplication (multiplying a number by one will result in that number)
Step-by-step explanation:
Answer:(a² - 4b² - 9)(a² - 4b² + 9)
(a^4 - 8a²b² + 16b^4) - 81
= [(a²)² - 2.4a²b² + (4b²)²] - 9²
= (a² - 4b²)² - 9²
= (a² - 4b² - 9)(a² - 4b² + 9)
Step-by-step explanation:
Answer:
63/4 or 15 3/4 miles each day
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Since the angles in a triangle add to 180 degrees, the third angle is 180-70-45=65 degrees
Answer:
Step-by-step explanation:
x^2 + 17x + 60
(x + 12)(x + 5)
