Step-by-step explanation:
We can find r by dividing the second term of the series by the first. Substitute values for a 1 , r , a n d n \displaystyle {a}_{1}, r, \text{and} n a1,r,andn into the formula and simplify. Find a1 by substituting k = 1 \displaystyle k=1 k=1 into the given explicit formula.
Answer:
125
Step-by-step explanation:
150 - 25 = 125 ;)
That looks correct. If your graph let's you scroll upward, double check to see if the line crosses 1 on the x axis. as long as it never touches x=1, you answer is correct
2(5)^4
2x5x5x5x5 (correct)
You’re multiplying 2 by 5 but there are 4 numbers of 5 since that is the power.
Hopefully it’s correct if not then...
85w + 350 ≥ 715
This is because you initially have 350 already, so that number shouldn't be altered. W represents the weeks, and since you get 85 per week, 85w would represent the end amount after a set amount of weeks.
Add that to the initial amount of 350.
It also states that you need at least 715, so you can have more. ≤ would represent less than or equal to, making any with that the incorrect answer.
Hope this helps!
