Evaluate the surface integral F. ds for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = -xi-yj+z3k, S is the part of the cone z = √√x² + between the planes z = 1 and z = 2 with downward orientation 1 z=2

Solve for x and y

Shante caught 17 ladybugs every day for 4 days. How many lady bugs does Shante need to catch on the fifth day so that she will have caught an average of 20 ladybugs per day over the 5 days? Solve this problem in two different ways, and explain you solutions.

twenty two more than four times a number is equal to the dofference between 155 ans three times the number. whats the number