Find the 9th term for the sequence a(n)=7-9n.
1 answer:
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Answer:
B. a (n) = -3n + 13
Step-by-step explanation:
Given arithmetic sequence is: 10, 7, 4, 1, -2, ...
Here a = 10, d = 7 - 10 = - 3
so x=4
Answer:
Step-by-step explanation:
Let
C(t) ---->the total cost of the electrician's services in dollars
t ---> the number of hours
we know that
The linear function in slope intercept form is equal to
where
m is the slope or unit rate
b is the y-intercept or initial value
In this problem we have
the y-intercept is equal to
----> set fee
we have the ordered pair (2,250)
substitute the given values
Solve for m
The linear function is equal to