Answer:
16
Step-by-step explanation:
8/4 = 2 so each bulb costs $2
To find how many bulbs you can buy with $32, divide 32 by 2 = 16
3.700
............................................
Answer:7.939
Step-by-step explanation:
Answer:
only -2 is in the domain
Step-by-step explanation:
For negative values under the sqrt, there is no real answer, hence
-2x ≥ 0
only for x=-2 this is the case.
The domain represents all the valid input values for x.
