We know that:
is an equation of a circle.
When we substitute x and y (from the pairs we have), we'll get a system of equations:
and all we have to do is solve it for a, b and r.
There will be:
From equations (II) and (III) we have:
and from (I) and (II):
Now we can easly calculate a and b:
Finally we calculate
:
And the equation of the circle is:
Answer:
<h2>7)½bh</h2>
Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about:</h3>
<h3>tips and formulas:</h3>
- in this case we can only use A=½bh
<h3>let's solve:</h3>
- the first option is for trapezoid
- the second option is for squres
- the third option doesn't make any sense
- 4th option is for circle
- 5th option is for parallelogram
- since there's no angle given therefore 6th option is not available
- we can only use the 7th option for this triangle
- therefore our answer is the 7th option i.e A=½bh
Answer:
x=14/9
Step-by-step explanation:
Answer:
y = -1/3x - 5 1/3
Step-by-step explanation:
Slope Intercept =
y=mx + b
Substitute the Slope
y= -1/3x + b
Substitute x and y from the point into the equation
-6 = -1/3(2) + b
-6 = -2/3 +b
Isolate the b with the addition property of equality
-5 1/3 = b
Substitute all variables
y = -1/3x - 5 1/3
Answer:
3,12,21
Step-by-step explanation:
You add 9 to the number each time so the next 3 terms will be....
-6+9 =3
3+9=12
12+9=21