Answer:
Step-by-step explanation:
One way to solve the quadratic equation x2 = 9 is to subtract 9 from both sides to get one side equal to 0: x2 – 9 = 0. The expression on the left can be factored: (x + 3)(x – 3) = 0. Using the zero factor property, you know this means x + 3 = 0 or x – 3 = 0, so x = −3 or 3.
It is always negative, because it keeps going down on the number line. Say it is negative 8 minus 5, it would be negative 13, because it adds to the negatives, so it would go deeper into the negatives.
We will have the following:
First, we solve both equations for y, that is:
&
From this we can see that they are parallel lines, that do not share any common points, so there is no solution for the system.
Answer:
4° C per hour
Step-by-step explanation:
16/4 will give us the temperature change every hour
I hope this helps you
100-y=x^2.
x= square root of 100-y
y^-1= square root of 100-x
