About the minus sign with 16, square root of -1 is an imaginary number i(iota). Also we know that square root of -16 will be multiplication of square root of -1 and square root of 16. So the final answer becomes, + or - 4i. Hope this helps
Answer:
4.5
Step-by-step explanation:
The standard form equation for a circle is

where (h, k) is the center and r is the radius.
The standard form equation for an ellipse is

(center h, k and major and minor axes a and b)
This equation is standard form for neither, but might be general form for one.
Answer:
41
Step-by-step explanation:
9514 1404 393
Answer:
Step-by-step explanation:
Divide each number in the ratio by their greatest common divisor.
4500 : 80000 = (4500/500) : (80000/500) = 9 : 160
8100 : 144000 = (8100/900) : (144000/900) = 9 : 160