Answer:
we need to know the variables
Step-by-step explanation:
<span>The correct option is "20" because
f(n)=<span>n2</span>−n
(−4)=(−4<span>)2</span>−(−4)
=16+4
=20</span>
Answer:
The diameter of a circle with an area of 100 square miles is 20/√π miles.
Step-by-step explanation:
Area =100 = πr^2.
diameter = d = 2r.
100 = πr^2.
100/π = r^2.
√(100/π) = r.
10/√π = r.
d = 2r.
d = 2 * 10/√π.
d = 20/√π
Answer:
<h2><em><u>Option</u></em><em><u> </u></em><em><u>B</u></em><em><u> </u></em></h2>
Step-by-step explanation:
<em><u>As</u></em>,
It has shown that line c cuts line b by making 90° so those lines are called <em><u>perpendicular bisectors </u></em><em><u>.</u></em>
<em><u>Hence</u></em>,
<em>Option B is the correct symbol shown for perpendicular bisector of line </em><em>c</em><em> </em><em>to line </em><em>b</em><em>.</em>
Answer:
because only two of it's sides are parallel
, 
and 
