Determine the triangle’s area whose edges are adjacent:

The contour map below shows the effect of weather on US corn production. find f (20, 77) 

Determine the equation of the plane whose direction ratios for its normal are (–2, 1, 3) and which passes through the point (3, –6, 4).

Determine the equation of the plane that contains the points: (1,-1,0), (3,0,4), and (5,-1,2).

Find the distance between the points: (-1,0,3 ) and (3,5,7)  

Find f (1, 1)

Determine the equation of the plane whose direction ratios for its normal are (1, 1, 1) and which passes through the point (3, 4, -4).

Perform the indicated operation. Write the result in the form a + bi.(7 + 6i) – (-3 + i)

Solve the equation.x2 – x = 42

Perform the indicated operation.(2n7 + 15n6 + 2) – (4n7 + 5n6 – 19)