Answer:
its C
Step-by-step explanation:
Let x = total distance he covered
3x/4 by bus
1/2 . x/4 = x/8 by jogging
the remaining distance = x/8 by walking
thus x/8 = 800ft
x = 8 . 800 = 6400ft
Carbon dioxide from the atmosphere dissolves in the surface waters of the ocean. Some of the carbon dioxide stays as dissolved gas, but much of it gets turned into other things. Photosynthesis by tiny marine plants (phytoplankton) in the sunlit surface waters turns the carbon into organic matter.
Quadratic equation is the equation in which only one variable is unknown. The highest power of the variable is 2.The value of the given functions are,


<h3>
Given information-</h3>
The given function is,


<h3>Quadratic equation</h3>
Quadratic equation is the equation in which only one variable is unknown. The highest power of the variable is 2.
1) The value of the function (h+k)(2),




2)The value of the function (h-k)(3),




3) The value of the function 3h(2)+2k(3)



Hence the value of the given functions are,


Learn more about the quadratic equation here;
brainly.com/question/2263981
Answer:
A
Step-by-step explanation: