Use the domain and range of each of the following relations to determine which is a function. a. {(7,5), (-6,0), (2,3)
b. {(7,5), (-6,0), (-6,-2), (2,3)}
c. {7, -6, 2, -7}
d. {(7,5), (-6,0), (7,3)}

If square root x = -7, then x= -49 true or false

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.