Match the following vector fields with the verbal descriptions of the level curves or level surfaces to which they are perpendicular by putting the letter of the verbal description. number of the vector field. 1. F=2xi+yj+zk
2. F=2i+j
3. F=xi−yj
4. F=xi+yj−zk
5. F=xi+yj−k
6. F=2i+j+k
7. F=xi+yj+zk
8. F=xi+yj
9. F=−yi+xj
10. F=2xi+yj
11. F=yi+x

a. paraboloids
b. hyperboloids
c. ellipsoids
d. spheres
e. planes
f. circles
g. lines
h. hyperbolas
i. ellipses

Can someone check my answer? you : )

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.