Mrs. Pizzarello was helping clean out the staff refrigerator when she found 3 colonies of bacteria in a dish. Mrs. Pizzarello decided to use it as a science experiment. Every hour the number of colonies doubles.

step-by-step explanation:

in which figure is point g a centroid

i think it would be 42cm

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

(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.