Answer:
meh
Step-by-step explanation:
First you plug everything in to get
2a=-5 (1)^2+9 you do the powers and multiply
2a=-5 (1)+9
2a=-5+9
2a=4
a=2
Answer:
Each minute Seung fills one less bag than Razi.
Step-by-step explanation:
Find the rate of change.
<u>Razi's rate of change:</u>

<u>Seung's rate of change:</u>

This means Razi packs 4 bags per minute, Seung packs 3 bags per minute.
<u>Difference</u> = 4 - 3 = 1 bag
Each minute Seung fills one less bag than Razi.
Answer:
See below
Step-by-step explanation:
<em><u>Formula</u></em>
The general term we will use is
t = a r^(n - 1)
<em><u>Givens</u></em>
a = - 2
r = - 5
n = 11
t_n = a*r^(n - 1)
t_n = -2*(-5)^(11 - 1)
t_11 = -2*(-5)^10
t_11 = -2 (9,765,625)
t_11 = 19,531,250
<em><u>Note</u></em>
Before accepting this answer, you should check to see that the formula works with a value you know the answer to.
t_3 = -2(-5)^(3-1)
t_3 = -2(-5)^2
t_3 = -2 * 25
t_3 = - 50
Which is what your series shows.