F(x, y)=yx−−√−y2−4x+15y. Find and classify all critical points of the function in the interior of its domain. If there are more blanks than critical points, leave the remaining entries blank.

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

by definition, an arc subtended by a central angle of some given measure has the same measure. so .

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart