Answer:
theres not alot of info it just says boys, and ends there
Step-by-step explanation:
Answer:
= 150 - 25x
Step-by-step explanation:
Let Leanne uses gas for x weeks.
Since expenditure on gas for one week = $25.00
Therefore, Leanne will spend on gas for x weeks = $25x
It is given in the question that she has total amount = $150.00
So the amount Leanne is left with after x weeks = 150 - 25x
If we represent amount left, by
so the recursive formula will be
= 150 - 25x
Now for x = 1 week
= 150 - 25 = $125
Therefore, Leanne will have $125 in her gas card after the first week.
Answer:
y = 4cos((π/5)x) +3
Step-by-step explanation:
The graph shows the peak of the function to be at x=0, so a cosine function is an appropriate choice for the model.
The value of A is half the difference between the minimum and maximum, so is ...
A = (1/2)(7 -(-1)) = 4
The value of C is the average of the maximum and the minimum, so is ...
C = (1/2)(7 +(-1)) = 3
The value of k must be chosen so that for one full period, kx is 2π. We note that one minimum is at -5, and the next is at +5, so the period of this waveform is (5 -(-5)) = 10. Then ...
k·10 = 2π
k = π/5 . . . . . divide by 10 and reduce the fraction
Now, we have all the parameters of our function:
y = 4cos((π/5)x) +3
Answer:
B
Step-by-step explanation:
