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:
Radius on a coordinated plane
Answer:
100%
Step-by-step explanation:
Perimeter of first garden is given by 2(l+w) where l is length and w is width
Perimeter=2(5+3)=16
The dimensions of second rectangle is doubled hence 10 ft by 6 ft
Perimeter=2(10+6)=32
Change in area will be 32-16=16
Percentage change in area is 16/16*100=100%
Convert 7500 Millimeters to Decimeters (mm to dm) with our conversion calculator and conversion tables. To convert 7500 mm to dm use direct conversion formula below.
7500 mm = 75 dm.
You also can convert 7500 Millimeters to other Length (popular) units.
so it will be A 75DECIMETERS
