Option C
The radius of circle is 13 units
<em><u>Solution:</u></em>
<em><u>The equation of circle is given by formula:</u></em>

Where, the center being at the point (h, k) and the radius being "r"
<em><u>Given that circle has its center at the origin</u></em>
(h, k) = (0, 0)
<em><u>(5, -12) is a point on the circle</u></em>
(x, y) = (5, 12)
<em><u>Substituting in equation we get,</u></em>

Thus radius of circle is 13 units
Answer: i got you my boi answer is x > -3
Step-by-step explanation:
You should move the variable to the same side!
best by addition/substraction:
for example:
2x+5=3x
I will "move" the 3x:
2x+5-3x=0
now you can add up the variables: -x+5=0 (x=5)
essentially you can move it to the other side, changing the sign: + to -, - to +
You have a square with half circles along the sides.
The length of each side is 4ft, so the radius of the circles is 2ft
to calculate the perimeter you can calculate the circumference of 4 half circles = 2 complete circles
c=2r*

=
2*2

=12.56
perimeter=2c=25.12=8

the area is the area of 2 circles+the area of the square
circle area= r^2*

=2*2

=4

concrete area=circle area*2+square area
=4

*2+(4*4)
=8

+(4*4)
=8

+16ft
=41.12 ft^2
Triangle B can be proven congruent