If the dots are going to the right, it's positive. If they're going to the left, they're negative.
Answer: 12.
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Start with the 3.
You know that there is a difference of 4 between (say) 2 and 5. The 3 is a sign that the sequence is increasing. The members of the sequence are going up.
n - 1 means that the nth terms is calculated as an and uses the number of terms to be n-1. That means that the first term is a1 which is the starting point of the sequence.
The answer is an = a1 + (n-1)*d
d = 3
a1 = - 7
So let's try the formula out.
a4 = -7 + (4 - 1)*3
a4 = -7 + 3 * 3
a4 = -7 + 9
a4 = 2
Is 2 the 4th term in the series? Yes it is!
Answer:
The minimum balance is $ 1,000
Step-by-step explanation:
According to the expression used to define the balance in Tim's account, at time t = 0:
Then, the initial balance in Tim's account is 1000 dollars. One year later, the balance in Tim's account will be:
And each subsequent year, the balance will increase in a factor of 1.06. The minimum balance in Tim's account is 1000, and there is no possibility that the balance could be less than that amount of money.
