$\bf \textit{equation of a circle}\\\\ 
(x-{{ h}})^2+(y-{{ k}})^2={{ r}}^2
\qquad 
\begin{array}{lllll}
center\ (&{{ h}},&{{ k}})\qquad 
radius=&{{ r}}
\end{array}\\\\
-------------------------------\\\\
x^2+y^2=25\implies (x-0)^2+(y-0)^2=5^2$

so notice above, the circle is centered at h,k or 0,0, the origin, and has a ratio of 5.

and y = 2, is just a horizontal line, check the picture below.

7 0

3 years ago

Please help homework due tomorrow!!

Alona [7]

Answer:

12-157.5 13-6ft

Step-by-step explanation:

the first one just look up 65% of 450 and minus the number you get by 450

the second one do the butterfly method

$\frac{5}{12} \frac{x}{14.4} \\$

the heights on top and shadows on bottom

12x=72

x=6

4 0

3 years ago

Solve for x: 5x\10=2 is it (a) 1 (b) 4 (c) 5 (d) 20

OleMash [197]

(b) 4

5(4)/10=20/10=2

6 0

3 years ago