the answer to this would be -1/6
We know that
the standard form of the equation of the circle is
![(x-h) ^{2} +(y-k) ^{2} =r ^{2}](https://tex.z-dn.net/?f=%28x-h%29%20%5E%7B2%7D%20%2B%28y-k%29%20%5E%7B2%7D%20%3Dr%20%5E%7B2%7D%20)
where
(h,k) is the center
r is the radius
case a)
![x^{2} + y^{2} -8x-8y+23=0 \\ (x-4) ^{2} +(y-4)^{2} = 3^{2}](https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20%2B%20y%5E%7B2%7D%20-8x-8y%2B23%3D0%20%5C%5C%20%28x-4%29%20%5E%7B2%7D%20%2B%28y-4%29%5E%7B2%7D%20%3D%203%5E%7B2%7D%20)
Is a circle
with radius r=
![3](https://tex.z-dn.net/?f=3)
units
and center
![(4,4)](https://tex.z-dn.net/?f=%284%2C4%29)
case b)
![x^{2} + y^{2} -8x-8y+32=0 \\ (x-4) ^{2} +(y-4) ^{2} =0](https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20%2B%20y%5E%7B2%7D%20-8x-8y%2B32%3D0%20%5C%5C%20%28x-4%29%20%5E%7B2%7D%20%2B%28y-4%29%20%5E%7B2%7D%20%3D0)
Is not a circle
case c)
![x^{2} + y^{2} -4x-y+23=0 \\ (x+2) ^{2} +(y-2) ^{2} =-15](https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20%2B%20y%5E%7B2%7D%20-4x-y%2B23%3D0%20%5C%5C%20%28x%2B2%29%20%5E%7B2%7D%20%2B%28y-2%29%20%5E%7B2%7D%20%3D-15)
Is not a circle
case d)
![x^{2} + y^{2} +4x+4y+9=0 \\ (x+2) ^{2} +(y+2) ^{2} =-1](https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20%2B%20y%5E%7B2%7D%20%2B4x%2B4y%2B9%3D0%20%5C%5C%20%28x%2B2%29%20%5E%7B2%7D%20%2B%28y%2B2%29%20%5E%7B2%7D%20%3D-1)
Is not a circle
therefore
the answer is
A specific segment of DNA on a chromosome
Gene is a segment on DNA that can code for full functional or structural protein. An example is the<em> beta lactam </em>gene that can code for the <em>beta-lactamase</em> enzyme that can break down some antibiotics like penicillin. The genes are therefore responsible for the phenotype of an organism.
Step-by-step explanation:
For diploid organisms like humans, who have a set of chromosomes, there are two forms of genes, called alleles, on the same locus on both sister chromosomes. Usually one is dominant over the other meaning its phenotype masks the other becaue it produces the ideal functional protein. A reccessive gene alelle mostly produces a defective form of the particular protein.
Learn More:
For more on genes check out;
brainly.com/question/10343483
brainly.com/question/12647404
#LearnWithBrainly
<span>Nope. A consistent system is either dependent (both equations represent the same line) or independent. So in an independent system, the lines intersect in exactly one point, which means there is exactly one solution. A dependent system has an infinite number of solutions. An inconsistent system has no solution, so no system of linear equations can have exactly two solutions.</span>
Answer:
x = 4, x= -8
Step-by-step explanation: