Answer:
aₙ = 30 - 5n
Step-by-step explanation:
25,20,15,10, ...
<u>We see from the given series that it is AP with:</u>
- First term = 25
- Common difference = -5 and it is decreasing series
<u>Then formula is:</u>
- aₙ= a₁ + (n-1)d
- aₙ= 25 + (n-1)(-5)
- aₙ= 25 - 5n + 5
- aₙ = 30 - 5n
If he runs 6.5 metres per second, then you multiply 6.5 by 4 to get 26m
H = number of hamburgers
c = number of cheeseburgers
There are 100 burger buns, therefore
h + c ≤ 100 (1)
The amount raised by selling h hamburgers and c cheeseburgers to make at least $80 is given by
3.00h + 3.50c ≥ 80 (2)
The problem to be solved is represented by the system of inequalities (1) and (2).
Try this option:
the functions y=sin(x) and y=cos(x) are the standart functions; it means, the period of each is 2π, maximum value is '1', minimum value is '-1'.
Using the properties described above, to find the max. value for the function y=2cos(x): 2*1=2, where 2- the amplitude of the given function, 1- maximum of the standart function;
the max. value for the function y=3sin(x+π): 3*1=3, where 3 - the amplitude of the given function, 1- maximum of the standart function.
For more details see the attached picture.
In other words, common equation for such functions is y=A*sin(ωx+Ф), where A- amplitude, ω - frequency and Ф - initial phase of the given function.
Max. and min. values depend on A, all the points of the function repeat every 2π, including max. and min. values.
Answer:
D.
Step-by-step explanation:
In order to get the answer, the sum of difference is used to find an exact value therefore D is the right answer!
answer was right on test.