Answer:
d. Variable ratio
Step-by-step explanation:
We are asked to determine that gambling at a slot machine is an example of which reinforcement schedule.
Let us see our given choices one by one.
a. Fixed ratio
We know that in fixed ratio schedule, reinforcement is delivered after the completion of a number of responses. An example of fixed ratio is a reward to every 6th response.
b. Fixed interval
We know that in fixed interval schedule the first response is rewarded only after a specified amount of time has elapsed. An example of fixed interval schedule is weekly paycheck.
c. Variable interval
We know that in variable interval schedule, the reinforcement is delivered at changing and unpredictable intervals of time.
d. Variable ratio
In variable ratio schedule, a response is reinforced after an unpredictable number of responses. Gambling and lottery are examples of variable ratio.
Therefore, option 'd' is the correct choice.
6 × 1,000 = 6,000
2 × 10 = 20
3 × 1/10 = 3/10 = 0.3
5 × 1/1,000 = 5/1,000 = 0.005
6 × 1,000 + 2 × 10 + 3 × 1/10 + 5 × 1/1,000 = 6,020.305
If this is correct the answer would be
y^2 + 0.1y + 0.0025
we have

we know that
The volume of a cube is equal to

where
b is the length side of a cube
Using a graph tool------> find the roots of the polynomial
see the attached figure
x=4
so

therefore
<u>The answer is</u>
the length side of a cube is equal to (x-4)