common ratio is 2
first term is 7
last option is the answer
This is a geometric sequence, since each term is found by multiplying the previous term by 2.
The explicit formula for a geometric sequence is given by
, where a₁ is the first term and r is the common ratio, and n is the term number.
For our sequence, the first term is 7. The common ratio is 2. This gives us
Since we want the 10th term,
the camry sales+accord sale=828,000. to make it so the two numbers are 18 thousand apart and still equal 828,000, you first need to find out what half of 828,000 is. 828,000/2=414,000. for the two numbers to equal 828,000, you have to add the same amount as you subtract from the middle. in this case, the number is 9,000 because it's half of 18,000. to equal 828,000, you have to add 9,000 to 414,000 for the camry and subtract 9,000 from 414,000 for the accord. 414,000+9,000=423,000.