Answer:
Step-by-step explanation:
The equation for a circle is 
, where 
is the vertex of the circle and 
is the radius. Immediately, since the center of the circle is given, we know what 
and 
are. is 230 and is 220.
The only thing we need to find is the radius, which will just be the distance from the center (230,220) to a point on the circumference (170,170). The distance between them can be calculated using the <u>distance formula</u>, which is really just the <u>Pythagorean Theorem</u> rearranged. The formula states that 
, where 
is the change in the x-coordinates of the two points and 
is the change in the y-coordinates of the two points. Plug-in for 60 and for 50 to get 
. Solve for 
, arriving at 
. Therefore, the radius of the circle is .
Finally, we have all of the components to create the equation of the circle. Plug-in 230 for , 220 for , and for .
The equation of the circle will be .
Hope this helps :)
I think the answer is either 3/49 or about 0.061
hope this helps.
7,,,,,,,,,,,,,,,,,,,,please help
Goryan [66]
Answer:
1
Step-by-step explanation:
The given expression is
Recall and use
Same bases are dividing, so we write one base and subtract the exponent.
7-5*14=62
The equation above is how you would write it with a variable.
The number is 14.
This is because if you do 14 times 5, the answer is 70. Then If you subtract from that, it would be 62.
You can also do 62+7, which is 70, and then divide that by 5 and you will still get 14.
