Answer:
4x² -20x +61
Step-by-step explanation:
the quadratic equation can be written as (x-root1)(x-root2)
(x-(5/2) -3i) (x-(5/2)+3i), distribute
x² -(5/2)x +3xi -(5/2)x + 25/4 -(15/2)i -3xi +(15/2)i -9i², simplify
x² -(5/2)x -(5/2)x + 25/4 -9i², use the fact that i² =(√-1)² = -1 and substitute i²
x² -(5/2)x -(5/2)x + 25/4 +9, combine like terms and rewrite 9 as 36/4
x² -(10/2)x +25/4 + 36/4, combine like terms and simplify
x² -5x +61/4 is the quadratic expression yet it does not have integer coefficients so multiply by 4 to have all coefficients integers
4x² -20x +61
Answer:
3%
Step-by-step explanation:
1kg = 1000g
30÷1000 × 100 = 0.03×100=3%
Answer:
False
Step-by-step explanation:
Centennial Park = 2 km away
Cantara park = 2548 meters away
Converting the distance to the same unit ( meters)
Centennial park = (2 * 1000) = 2000 m away
Hence, it is Centennial Park which is located closer to Carolyn
Answer:
48.75
Step-by-step explanation:
68.2-19.45 couldn't u use a calculator?
Answer:
4
Step-by-step explanation:
To find the distance between two points, we subtract the x - x coordinates and y - y coordinates.
-1 - (-1) = 0
-8 - (-4) = -4
There was only a change in the y coordinates, so we will only account for this.
The distance between the points is four units.
