Answer:
yes
Step-by-step explanation:
75-5(2×6)
75-5×12×
-60×+75
That's pretty ill-formatted but the answer is D
has roots given by

Bonus quadratic formulas:
The Shakespeare Quadratic Formulas (
or
) are:


ANSWER TO QUESTION 1
The given function is

The partial derivative of f with respect to x means we are treating y as a constant. The first derivative is

and the second derivative with respect to x is,

ANSWER TO QUESTION 2
The given function is

The partial derivative of f with respect to y means we are treating x as a constant. The first derivative is

and the second derivative with respect to y is

ANSWER TO QUESTION 3
Our first mixed partial is

We need to differentiate

again. But this time with respect to y.
Since this is a product of two functions of y, we apply the product rule of differentiation to obtain,


ANSWER TO QUESTION 4
The second mixed partial is

We need to differentiate

again. But this time with respect to x.
Since this is a product of two functions of x, we apply the product rule of differentiation to obtain,


Hence,
Answer:
3
Step-by-step explanation: