Find the sum of 3x2−7x+5 and x2−4x−9, subtract 5x2−8x−7. Question 4 options:

−x2−3x+3

−x2−19x−11

x2−3x+3

−x2+3x−3

The total number of students in gina’s after-school program is .the number of students who have 4 or more siblings is .reset next

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. another supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which would you choose and how much would you save with that choice? show calculator try it! if you buy 1000 ml bags, how many do you need to buy each month? type your answer in the space provided and click on the check answer button.

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .