The equation, y = 12841(1.01)x , represents the average cost of an education at a private college, after 1990. What is the avera
2 answers:
Answer:
Option B is correct.
the average cost in 1990 is, $12,841
Step-by-step explanation:
Given the equation :
....[1]
where y represents the he average cost of an education at a private college after 1990 and x be the time in years.
We have to find the average cost in 1990.
⇒
Substitute in [1] we have;
Simplify:
Therefore, the average cost in 1990 is, $12,841
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Answer:
n = 18 cycles
Step-by-step explanation:
To know how many times does the current oscillates in the given time, you take into account that the number of oscillation can be calculated by using the following expression:
(1)
f: frequency of the oscillation of the current
t: time = 0.30s
The frequency is the number of cycles per second, that is, f = 60 cycles/s
You replace the values of f and t in the equation (1):
In 0.30s the current oscillates 18 times