You'd move the decimal to the right twice so 0.0514 as a percentage is <span>5.14%</span>
-2x^2 + 3x - 9 = 0
The quadratic is not factorable so quadratic formula must be used.
x = (-b + - √(b^2 - 4ac))/2a
a = -2, b = 3, c = -9
x = (-3 + - √(9 - 4*-2*-9))/-4
x = (-3 + - √(-63))/-4
x = -3 + - 3i√7
--------------
-4
x = 3 + 3i√7 x = 3 - 3i√7
------------ ------------
4 4
Answer:
πr²/4
Step-by-step explanation:
Area of a circle if πr²
so Area of a quarter of a circle (or 1/4 of a circle) = πr²÷4
