Explain who would i be able to get the answer to this problem. 8k-k2=42,

We have been an quadratic equation and we are asked to solve our equation.

Upon subtracting 42 from both sides of our equation we will get,

Let us check whether our quadratic equation has any real roots using discriminant formula.

Upon substituting our given values in discriminant formula we will get,

We can see that D is less than zero, so our quadratic equation has no real roots.

Now we will use imaginary number i to find complex roots of our quadratic equation.

We will use to solve our equation.

Therefore, our answer will be .

%40

step-by-step explanation:

sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation: