A plane flies 450 miles with the wind, and 350 miles against the wind in the same amount of time). If the wind is blowing at 30 mph, how fast would the plane be going
without air helping/hurting?

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

Determine domain and range, largest open interval, and intervals which function is continuous.

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x, y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis