Answer:
18
Step-by-step explanation:
Given
x - 1 = 2 ( add 1 to both sides )
x = 3
Then
2x² = 2(3)² = 2 × 9 = 18
Its a rational number but also a integer and could never be a whole number because its a negative and whole numbers are always positive
Answer:
comparing fossils with other engerys:
Most alternatives energy sources doesn't have as much pollution produce like fossil fuel does,
Fossil comes from underground or persevered by nature, when others can be made by renewable resources, such as Wind(windmills) , sun (solar), and water (those rolly things)
Answer:
Centre: (-4,2)
Radius: 3
Step-by-step explanation:
h = 8/-2 = -4
k = -4/-2 = 2
(-4)² + 2² - 11 = r²
r² = 9
r = 3
