Answer:
The nth term is 109-9n
Step-by-step explanation:
Here, we want to find the nth term of the given arithmetic sequence
Mathematically, we have the nth term as;
Tn = a + (n-1)d
where a is the first term which is 100 in this case
d is the common difference which is the value obtained by subtracting the preceding term from the succeeding term; it is constant throughout the sequence
The value here is thus;
82-91 = 91-100 = -9
Substituting these values
Tn = 100 + (n-1)-9
Tn = 100 -9n + 9
Tn = 100 + 9 - 9n
Tn = 109-9n
The answer is b)35 because those angles are supplementary which means their sum is 180.
so 180+145 = 35
I think its the last one, Aidan can expect to save about $27.52 each week. Hope I was correct
find the best angle to wipe the blood and calculate how many times you need to wipe the blood off.