An electrician needs to run a cable from the top of a 56-foot tower to a transmitter box located 42 feet away from the base of the tower. Find how long he should cut the cable.

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

the answer is d

step-by-step explanation:

you can also use mathway to get you answer + steps