Answer:
r≈5.36656314
Step-by-step explanation:
Since A=πr(r+
) so we get that 226.08/pi≈72 or 226.08/3.14=72 we then plug it in to get 72=r(r+
) so we get r≈5.36656314
Answer:
Quadrilateral ABCD is inscribed in a circle, then
A + C = 180
=> 2x + 9 + 3x + 1 = 180
=> 5x = 170
=> x = 34
=> A = 2 x 34 + 9 = 77 deg
Hope this helps!
:)
Answer:
y = 4 x = -2
Step-by-step explanation:
The value of 'k' in the quadratic Equation
having one rational solution is k is 8.
<h3>
What is a Quadratic Equation?</h3>
- Quadratic equations are the polynomial equations of degree 2 in one variable of the type
where a, b, c, ∈ R and a ≠ 0. - The standard form of a quadratic equation is
.
Here, the given equation is ![4x^{2}+kx+4=0](https://tex.z-dn.net/?f=4x%5E%7B2%7D%2Bkx%2B4%3D0)
By comparing the given equation with the standard form of the quadratic equation we get,
a = 4
b = k
c = 4
The given quadratic is having one rational solution, which means ![b^{2} -4ac=0](https://tex.z-dn.net/?f=b%5E%7B2%7D%20-4ac%3D0)
Therefore,
![k^{2} -4 \times 4\times4=0\\k^{2} -64=0\\k^{2} =64\\k=\sqrt{64} \\k=8](https://tex.z-dn.net/?f=k%5E%7B2%7D%20-4%20%5Ctimes%204%5Ctimes4%3D0%5C%5Ck%5E%7B2%7D%20-64%3D0%5C%5Ck%5E%7B2%7D%20%3D64%5C%5Ck%3D%5Csqrt%7B64%7D%20%5C%5Ck%3D8)
Therefore, the value of k is 8.
Learn more about the quadratic equation is brainly.com/question/8649555
#SPJ4